List of Dune terminology
Encyclopedia
This is a list of terminology used in the fictional Dune universe
Dune universe
Dune is a science fiction franchise which originated with the 1965 novel Dune by Frank Herbert. Considered by many to be the greatest science fiction novel of all time, Dune is frequently cited as the best-selling science fiction novel in history...

 created by Frank Herbert
Frank Herbert
Franklin Patrick Herbert, Jr. was a critically acclaimed and commercially successful American science fiction author. Although a short story author, he is best known for his novels, most notably Dune and its five sequels...

, the primary source being "Terminology of the Imperium," the glossary contained in the novel Dune
Dune (novel)
Dune is a science fiction novel written by Frank Herbert, published in 1965. It won the Hugo Award in 1966, and the inaugural Nebula Award for Best Novel...

(1965).

Dune word construction could be classified into three domains of vocabulary, each marked with its own neology
Neology
Neology , the name given to the rationalist theology of Germany or the rationalisation of the Christian religion. It was preceded by slightly less radical Wolffism....

: the names and terms related to the politics and culture of the Galactic Empire, the names and terms characteristic of the mystic sodality
Sodality
In Christian theology, a sodality is a form of the "Universal Church" expressed in specialized, task-oriented form as opposed to the Christian church in its local, diocesan form . In English, the term sodality is most commonly used by groups in the Catholic Church, where they are also referred to...

 of the Bene Gesserit
Bene Gesserit
The Bene Gesserit are a key social, religious, and political force in Frank Herbert's science fiction Dune universe. The group is described as an exclusive sisterhood whose members train their bodies and minds through years of physical and mental conditioning to obtain superhuman powers and...

, and the barely displaced Arabic of the Fremen
Fremen
The Fremen are a group of people in the fictional Dune universe created by Frank Herbert. First appearing in the 1965 novel Dune, the Fremen inhabit the desert planet Arrakis and are based on the desert-dwelling Bedouin and Kalahari Bushmen. In Herbert's novels, Arrakis is the sole known source...

 language.
Fremen share vocabulary for Arrakeen
Arrakis
Arrakis  — informally known as Dune and later called Rakis — is a fictional desert planet featured in the Dune series of novels by Frank Herbert. Herbert's first novel in the series, 1965's Dune, is popularly considered one of the greatest science fiction novels of all time, and it is...

 phenomena with the Empire, but use completely different vocabulary for Bene Gesserit-implanted messianic religion
Messianism
Messianism is the belief in a messiah, a savior or redeemer. Many religions have a messiah concept, including the Jewish Messiah, the Christian Christ, the Muslim Mahdi and Isa , the Buddhist Maitreya, the Hindu Kalki and the Zoroastrian Saoshyant...

.

Due to the similarities between some of Herbert's terms and ideas and actual words and concepts in the Arabic language
Arabic language
Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

  as well as the series' "Islam
Islam
Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

ic undertone
Undertone
Undertone can mean:*An underlying or implied tendency or meaning; a subtext*An element of an undertone series; a pitch whose frequency is an integral fraction of another*The Irish rock band The Undertones...

s" and themes a Middle East
Middle East
The Middle East is a region that encompasses Western Asia and Northern Africa. It is often used as a synonym for Near East, in opposition to Far East...

ern influence on Herbert's works has been noted repeatedly.

A

  • Aba A loose, usually black robe worn by Fremen
    Fremen
    The Fremen are a group of people in the fictional Dune universe created by Frank Herbert. First appearing in the 1965 novel Dune, the Fremen inhabit the desert planet Arrakis and are based on the desert-dwelling Bedouin and Kalahari Bushmen. In Herbert's novels, Arrakis is the sole known source...

     women and Bene Gesserit
    Bene Gesserit
    The Bene Gesserit are a key social, religious, and political force in Frank Herbert's science fiction Dune universe. The group is described as an exclusive sisterhood whose members train their bodies and minds through years of physical and mental conditioning to obtain superhuman powers and...

     sisters.
  • Abomination
    Abomination (Dune)
    Abomination, in the context of the Dune series written by Frank Herbert, refers to one who acquires full consciousness as a fetus as a result of being exposed to the ritual spice agony, gaining all their ancestral memories before birth .The spice agony ritual involves a Bene Gesserit acolyte drinking...

      Bene Gesserit term for one who is pre-born and thus susceptible to being taken over by the ancestral personalities in Other Memory.
  • Ajidamal (or Amal) Disastrously-flawed synthetic melange created by the Tleilaxu
    Bene Tleilax
    The Bene Tleilax or Tleilaxu are an extremely xenophobic and isolationist society in Frank Herbert's science fiction Dune universe. Genetic manipulators who traffic in biological products such as artificial eyes, gholas, and "twisted" Mentats, the Tleilaxu are a major power in the Imperium...

     Project Amal before the process of producing spice in axlotl tanks is perfected.
  • Akarso "Plant native to Sikun (of 70 Ophiuchi A
    70 Ophiuchi
    70 Ophiuchi a binary star system located 16.6 light years away from the Earth. It is in the constellation Ophiuchus. At magnitude 4 it is a typical less bright star usually visible to the unaided eye away from city lights.-Binary star:...

    ) characterized by almost oblong leaves. Its green and white stripes indicate the constant multiple, condition of parallel active and dormant chlorophyll
    Chlorophyll
    Chlorophyll is a green pigment found in almost all plants, algae, and cyanobacteria. Its name is derived from the Greek words χλωρος, chloros and φύλλον, phyllon . Chlorophyll is an extremely important biomolecule, critical in photosynthesis, which allows plants to obtain energy from light...

     regions."
  • Al-Lat "Mankind's original sun; by usage: any planet's primary."
  • Ampoliros "Legendary 'Flying Dutchman
    The Flying Dutchman
    The legend of the Flying Dutchman concerns a ghost ship that can never make port, doomed to sail the oceans forever. It probably originates from 17th-century nautical folklore. The oldest extant version dates to the late 18th century....

    ' of space;" Lady Jessica refers to the pre-Guild
    Spacing Guild
    The Spacing Guild is an organization in Frank Herbert's science fiction Dune universe. With its monopoly on interstellar travel and banking, the Guild is a balance of power against the Padishah Emperor and the assembled noble Houses of the Landsraad...

     legend in Dune: "Like the men of the lost star-searcher, Ampoliros sick at their guns forever seeking, forever prepared and forever unready."
  • Amtal (or Amtal Rule) "Common rule on primitive worlds under which something is tested to determine its limits or defects. Commonly: testing to destruction." "To know a thing well, know its limits. Only when pushed beyond its tolerances will true nature be seen. The Amtal Rule."
  • Arafel The "cloud-darkness of holy judgment" or "cloud darkness at the end of the universe;" the destruction of mankind averted by Leto Atreides II
    Leto Atreides II
    Leto Atreides II is a fictional character from the Dune universe created by Frank Herbert. Born at the end of Dune Messiah , Leto is a central character in Children of Dune and is the title character of God Emperor of Dune . The character is brought back as a ghola in the Brian Herbert/Kevin J...

    's Golden Path.
  • Axlotl tank  Biological tank in which gholas and melange may be produced.
  • Assassin's Handbook "Third-century compilation of poisons commonly used in a War of Assassins. Later expanded to include those deadly devices permitted under the Guild
    Spacing Guild
    The Spacing Guild is an organization in Frank Herbert's science fiction Dune universe. With its monopoly on interstellar travel and banking, the Guild is a balance of power against the Padishah Emperor and the assembled noble Houses of the Landsraad...

     Peace and Great Convention."
  • Ayat "The signs of life. (See Burhan.)"

B

  • Baliset "Nine-stringed musical instrument, lineal descendant of the zithra
    Zither
    The zither is a musical string instrument, most commonly found in Slovenia, Austria, Hungary citera, northwestern Croatia, the southern regions of Germany, alpine Europe and East Asian cultures, including China...

    , tuned to the Chusuk scale
    Musical scale
    In music, a scale is a sequence of musical notes in ascending and descending order. Most commonly, especially in the context of the common practice period, the notes of a scale will belong to a single key, thus providing material for or being used to conveniently represent part or all of a musical...

     and played by strumming. Favorite instrument of Imperial troubadours." Gurney Halleck
    Gurney Halleck
    Gurney Halleck is a fictional troubadour warrior in the Dune universe created by Frank Herbert. He is a major character in Herbert's Dune and Children of Dune , and appears in some of the prequel and sequel novels by Brian Herbert and Kevin J. Anderson.Gurney is portrayed by Patrick Stewart in the...

     is a master playing the baliset in the series. In David Lynch
    David Lynch
    David Keith Lynch is an American filmmaker, television director, visual artist, musician and occasional actor. Known for his surrealist films, he has developed his own unique cinematic style, which has been dubbed "Lynchian", and which is characterized by its dream imagery and meticulous sound...

    's 1984 adaptation of Dune
    Dune (film)
    Dune is a 1984 science fiction film written and directed by David Lynch, based on the 1965 Frank Herbert novel of the same name. The film stars Kyle MacLachlan as Paul Atreides, and includes an ensemble of well-known American and European actors in supporting roles. It was filmed at the Churubusco...

    , a cosmetically altered Chapman Stick
    Chapman Stick
    The Chapman Stick is an electric musical instrument devised by Emmett Chapman in the early 1970s. A member of the guitar family, the Chapman Stick usually has ten or twelve individually tuned strings and has been used on music recordings to play bass lines, melody lines, chords or textures...

     was used to portray the instrument. In the miniseries Frank Herbert's Dune
    Frank Herbert's Dune
    Frank Herbert's Dune is a 2001 3D video game based on the 2000 Sci Fi Channel miniseries of the same name. The game was not a commercial or critical success, and was the last product by Cryo Interactive, which went bankrupt shortly after the game's failure.As Paul, the son of the Duke Atreides's...

    , the baliset resembles a renaissance-era lute
    Lute
    Lute can refer generally to any plucked string instrument with a neck and a deep round back, or more specifically to an instrument from the family of European lutes....

    , with the pegbox bent back almost 90º.
  • Baraka "A living holy man of magical powers."
  • Bashar Military rank, slightly above a traditional Colonel
    Colonel
    Colonel , abbreviated Col or COL, is a military rank of a senior commissioned officer. It or a corresponding rank exists in most armies and in many air forces; the naval equivalent rank is generally "Captain". It is also used in some police forces and other paramilitary rank structures...

     and primarily used for military leader of a planetary subdistrict; alternately, Colonel Bashar, or Supreme Bashar for a military's most senior commander.
  • Bene Gesserit
    Bene Gesserit
    The Bene Gesserit are a key social, religious, and political force in Frank Herbert's science fiction Dune universe. The group is described as an exclusive sisterhood whose members train their bodies and minds through years of physical and mental conditioning to obtain superhuman powers and...

      Secretive and powerful matriarchal
    Matriarchy
    A matriarchy is a society in which females, especially mothers, have the central roles of political leadership and moral authority. It is also sometimes called a gynocratic or gynocentric society....

     order whose members possess extraordinary physical and mental powers.
  • Bene Tleilax
    Bene Tleilax
    The Bene Tleilax or Tleilaxu are an extremely xenophobic and isolationist society in Frank Herbert's science fiction Dune universe. Genetic manipulators who traffic in biological products such as artificial eyes, gholas, and "twisted" Mentats, the Tleilaxu are a major power in the Imperium...

     (or Tleilaxu) Secretive and powerful patriarchal
    Patriarchy
    Patriarchy is a social system in which the role of the male as the primary authority figure is central to social organization, and where fathers hold authority over women, children, and property. It implies the institutions of male rule and privilege, and entails female subordination...

     race known for their genetic manipulation technologies.
  • Bi-la kaifa A Fremen religious phrase meaning "Amen," which translates literally to "Nothing further need be explained."
  • Buddislam: a merger of the ancient religions of Buddhism
    Buddhism
    Buddhism is a religion and philosophy encompassing a variety of traditions, beliefs and practices, largely based on teachings attributed to Siddhartha Gautama, commonly known as the Buddha . The Buddha lived and taught in the northeastern Indian subcontinent some time between the 6th and 4th...

     and Islam
    Islam
    Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

    .
  • Burhan "The proofs of life. (Commonly: the ayat and burhan of life. See Ayat.)"
  • Burseg Military general.
  • Butlerian Jihad
    Butlerian Jihad
    The Butlerian Jihad is an event in the back-story of Frank Herbert's fictional Dune universe. Occurring over 10,000 years before the events chronicled in his 1965 novel Dune, this jihad leads to the outlawing of certain technologies, primarily "thinking machines", a collective term for computers...

      Mankind's "crusade against computer
    Computer
    A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem...

    s, thinking machines
    Thinking machines (Dune)
    Thinking machines is a collective term for artificial intelligence in the Dune universe created by Frank Herbert. The Butlerian Jihad a human crusade against thinking machines is an epic turning point in the back-story of the Dune universe...

    , and conscious robot
    Robot
    A robot is a mechanical or virtual intelligent agent that can perform tasks automatically or with guidance, typically by remote control. In practice a robot is usually an electro-mechanical machine that is guided by computer and electronic programming. Robots can be autonomous, semi-autonomous or...

    s."

C

  • Caid "Sardaukar officer rank given to a military official whose duties call mostly for dealings with civilians; A military governorship over a full planetary district; Above the rank of Bashar but not equal to a Burseg."
  • Carryall Aircraft used on Arrakis
    Arrakis
    Arrakis  — informally known as Dune and later called Rakis — is a fictional desert planet featured in the Dune series of novels by Frank Herbert. Herbert's first novel in the series, 1965's Dune, is popularly considered one of the greatest science fiction novels of all time, and it is...

     to "transport large spice mining, hunting and refining equipment."
  • Chakobsa
    Chakobsa
    Chakobsa is a fictional language used by the Fremen people of the Dune universe created by Frank Herbert. In the series of novels which begins with Dune, the language is said to be based on another fictitious language, the Bhotani Jib. Herbert presumably took the name from Chakobsa, the "hunting...

      Language of the Fremen
    Fremen
    The Fremen are a group of people in the fictional Dune universe created by Frank Herbert. First appearing in the 1965 novel Dune, the Fremen inhabit the desert planet Arrakis and are based on the desert-dwelling Bedouin and Kalahari Bushmen. In Herbert's novels, Arrakis is the sole known source...

     of Arrakis.
  • Chaumas "Poison in solid food as distinguished from poison administered in some other way."
  • Chaumurky "Poison administered in a drink."
  • CHOAM
    CHOAM
    The Combine Honnete Ober Advancer Mercantiles is a fictional universal development corporation in Frank Herbert's Dune universe, first mentioned in the 1965 novel Dune...

     (Combine Honnete Ober Advancer Mercantiles) the "universal development corporation
    Corporation
    A corporation is created under the laws of a state as a separate legal entity that has privileges and liabilities that are distinct from those of its members. There are many different forms of corporations, most of which are used to conduct business. Early corporations were established by charter...

     controlled by the Emperor
    Padishah Emperor
    Padishah Emperor is the title given to the hereditary rulers of the Old Empire in the science fiction Dune universe created by Frank Herbert.-Original series:...

     and Great Houses with the Guild
    Spacing Guild
    The Spacing Guild is an organization in Frank Herbert's science fiction Dune universe. With its monopoly on interstellar travel and banking, the Guild is a balance of power against the Padishah Emperor and the assembled noble Houses of the Landsraad...

     and Bene Gesserit
    Bene Gesserit
    The Bene Gesserit are a key social, religious, and political force in Frank Herbert's science fiction Dune universe. The group is described as an exclusive sisterhood whose members train their bodies and minds through years of physical and mental conditioning to obtain superhuman powers and...

     as silent partners." This corporation essentially controls the economy of the known universe, with shares
    Share (finance)
    A joint stock company divides its capital into units of equal denomination. Each unit is called a share. These units are offered for sale to raise capital. This is termed as issuing shares. A person who buys share/shares of the company is called a shareholder, and by acquiring share or shares in...

     and directorships
    Board of directors
    A board of directors is a body of elected or appointed members who jointly oversee the activities of a company or organization. Other names include board of governors, board of managers, board of regents, board of trustees, and board of visitors...

     determining each House's income and financial leverage.
  • Cogitor One of several ancient philosophers whose brains are transplanted into fluid-filled canisters so that they can analyze the universe indefinitely.
  • Cone of silence Sound-deadening "field of a distorter that limits the carrying power of the voice or any other vibrator by damping the vibrations with an image-vibration 180 degrees out of phase." Used for privacy, the field does not visually obscure lip movement.
  • Coriolis storm Sandstorms
    Dust storm
    A dust / sand storm is a meteorological phenomenon common in arid and semi-arid regions. Dust storms arise when a gust front or other strong wind blows loose sand and dirt from a dry surface. Particles are transported by saltation and suspension, causing soil to move from one place and deposition...

     on Arrakis in which "winds across the open flatlands are amplified by the planet's own revolutionary motion to reach speeds up to 700 kilometres per hour."
  • Crysknife
    Crysknife
    A crysknife is a fictional weapon in the Dune universe created by Frank Herbert. According to the 1965 novel Dune, it is made from the crystal tooth of Shai'Hulud, the giant sandworms that live below the sands of the desert planet Arrakis....

      Weapon made from the tooth of a sandworm
    Sandworm (Dune)
    The sandworm is a fictional form of desert-dwelling creature from the Dune universe created by Frank Herbert. They first appear in the 1965 novel Dune, considered to be among the classics in the science fiction genre, and are iconic of the Dune series.In the series, the sandworms called Shai-Hulud...

     from Arrakis.
  • Cutterray "Short-range version of a lasgun used mostly as a cutting tool and surgeon's scalpel."
  • Cymek  Type of cyborg
    Cyborg
    A cyborg is a being with both biological and artificial parts. The term was coined in 1960 when Manfred Clynes and Nathan S. Kline used it in an article about the advantages of self-regulating human-machine systems in outer space. D. S...

    ; specifically, a human brain implanted into a large, weaponized machine body.

D

  • D-wolves Guardians of the Sareer on Arrakis
    Arrakis
    Arrakis  — informally known as Dune and later called Rakis — is a fictional desert planet featured in the Dune series of novels by Frank Herbert. Herbert's first novel in the series, 1965's Dune, is popularly considered one of the greatest science fiction novels of all time, and it is...

     in the time of Leto Atreides II
    Leto Atreides II
    Leto Atreides II is a fictional character from the Dune universe created by Frank Herbert. Born at the end of Dune Messiah , Leto is a central character in Children of Dune and is the title character of God Emperor of Dune . The character is brought back as a ghola in the Brian Herbert/Kevin J...

    ; ferocious wolves descended from Gaze Hounds and ordinary wolves, "noted for their keen eyesight."
  • Damper, Ixian Portable device which hides words from anyone without the proper coded translator, and projects distortions that hide the precise movements of lips and the sounds of voices. It is described as a "black disc" buoyed midair by suspensors.
  • Deathstill Fremen device used to extract all moisture from a living or dead human or creature. This is traditionally done to reclaim precious water from the dead, who no longer require it; but in Children of Dune
    Children of Dune
    Children of Dune is a 1976 science fiction novel by Frank Herbert, third in a series of six novels set in his Dune universe. Initially selling over 75,000 copies, it became the first hardcover best-seller ever in the science fiction field...

    the device is used as a method of execution.
  • Distrans Steganographic
    Steganography
    Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity...

     device producing a "temporary neural
    Neural network
    The term neural network was traditionally used to refer to a network or circuit of biological neurons. The modern usage of the term often refers to artificial neural networks, which are composed of artificial neurons or nodes...

     imprint
    Imprinting (psychology)
    Imprinting is the term used in psychology and ethology to describe any kind of phase-sensitive learning that is rapid and apparently independent of the consequences of behavior...

     on the nervous system of Chiroptera
    Bat
    Bats are mammals of the order Chiroptera "hand" and pteron "wing") whose forelimbs form webbed wings, making them the only mammals naturally capable of true and sustained flight. By contrast, other mammals said to fly, such as flying squirrels, gliding possums, and colugos, glide rather than fly,...

    (bats) or birds. The creature's normal cry then carries the message imprint, which can be sorted from that carrier wave
    Carrier wave
    In telecommunications, a carrier wave or carrier is a waveform that is modulated with an input signal for the purpose of conveying information. This carrier wave is usually a much higher frequency than the input signal...

     by another distrans."

E

  • Elacca drug Narcotic produced from the "blood-grained" elacca wood of Ecaz; users' skin shows a characteristic carrot
    Carrot
    The carrot is a root vegetable, usually orange in colour, though purple, red, white, and yellow varieties exist. It has a crisp texture when fresh...

     color. The drug's effect is to remove most of the will to self-preservation; commonly used to prepare slave gladiator
    Gladiator
    A gladiator was an armed combatant who entertained audiences in the Roman Republic and Roman Empire in violent confrontations with other gladiators, wild animals, and condemned criminals. Some gladiators were volunteers who risked their legal and social standing and their lives by appearing in the...

    s for the ring.

F

  • Face Dancers Creatures created by the Bene Tleilax that are able to mimic other humans exactly and go undetected by all known means, except by Bene Gesserit Truthsayers.
  • Famine Times Years after the reign of Leto II, marked by chaos and famine
    Famine
    A famine is a widespread scarcity of food, caused by several factors including crop failure, overpopulation, or government policies. This phenomenon is usually accompanied or followed by regional malnutrition, starvation, epidemic, and increased mortality. Every continent in the world has...

     on many worlds, that led to The Scattering.
  • Faufreluches "The rigid rule of class distinction enforced by the Imperium. 'A place for every man and every man in his place.'"
  • Fedaykin (fɨˈdaɪkɨn) "Fremen death commando
    Commando
    In English, the term commando means a specific kind of individual soldier or military unit. In contemporary usage, commando usually means elite light infantry and/or special operations forces units, specializing in amphibious landings, parachuting, rappelling and similar techniques, to conduct and...

    s; historically: a group formed and pledged to give their lives to right a wrong." Personally trained by, and fiercely loyal to, Paul Atreides
    Paul Atreides
    Paul Atreides is a fictional character in the Dune universe created by Frank Herbert. Paul is a prominent character in the first two novels in the series, Dune and Dune Messiah , and returns in Children of Dune . The character is brought back as two different gholas in the Brian Herbert/Kevin J...

    .
  • Fish Speakers All-female military force created by Leto Atreides II
    Leto Atreides II
    Leto Atreides II is a fictional character from the Dune universe created by Frank Herbert. Born at the end of Dune Messiah , Leto is a central character in Children of Dune and is the title character of God Emperor of Dune . The character is brought back as a ghola in the Brian Herbert/Kevin J...

     to enforce his rule over the known universe.
  • Fogwood Wood native to Ecaz, capable of being shaped by thought alone.
  • Fremen
    Fremen
    The Fremen are a group of people in the fictional Dune universe created by Frank Herbert. First appearing in the 1965 novel Dune, the Fremen inhabit the desert planet Arrakis and are based on the desert-dwelling Bedouin and Kalahari Bushmen. In Herbert's novels, Arrakis is the sole known source...

      "Native" inhabitants of Arrakis.
  • Fremkit Fremen desert survival kit. Notable contents include an inflatable stilltent, a sand snorkel, a thumper, and maker hooks.
  • Futar
    Futar
    Futars are a fictional race in the Dune universe, introduced briefly in Heretics of Dune and appearing in Chapterhouse: Dune and Hunters of Dune. They are primitive, humanoid creatures, brought as captives to the "million planets" by the Honored Matres...

      Primitive and fierce humanoid creatures, a genetic mix of man and cat, artificially created out in the Scattering to hunt Honored Matres.

G

  • Galach  Universal language of the Dune universe
    Dune universe
    Dune is a science fiction franchise which originated with the 1965 novel Dune by Frank Herbert. Considered by many to be the greatest science fiction novel of all time, Dune is frequently cited as the best-selling science fiction novel in history...

    .
  • Ghola  A type of Clone
    Cloning
    Cloning in biology is the process of producing similar populations of genetically identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually. Cloning in biotechnology refers to processes used to create copies of DNA fragments , cells , or...

     grown in an axlotl tank from genetic material retrieved from the cells of a deceased subject.
  • Glowglobe  "Suspensor-buoyed illuminating device, self-powered (usually by organic batteries)."
  • Golden Path  Leto II's strategy to prevent humanity's destruction.
  • Gom jabbar
    Gom Jabbar
    The gom jabbar is a fictional weapon from the Dune universe created by Frank Herbert, appearing in his 1965 novel Dune and its adaptations...

      "Specific poison needle tipped with meta-cyanide
    Cyanide
    A cyanide is a chemical compound that contains the cyano group, -C≡N, which consists of a carbon atom triple-bonded to a nitrogen atom. Cyanides most commonly refer to salts of the anion CN−. Most cyanides are highly toxic....

     used by Bene Gesserit Proctors in their death-alternative test of human awareness."
  • Great Convention "Universal truce enforced under the power balance maintained by the Guild
    Spacing Guild
    The Spacing Guild is an organization in Frank Herbert's science fiction Dune universe. With its monopoly on interstellar travel and banking, the Guild is a balance of power against the Padishah Emperor and the assembled noble Houses of the Landsraad...

    , the Great Houses, and the Imperium. Its chief rule prohibits the use of atomic weapons against human targets."
  • Guild Navigator
    Guild Navigator
    A Guild Navigator is a fictional humanoid in the Dune universe created by Frank Herbert. Humans mutated through the consumption of and exposure to massive amounts of the spice melange, they are able to use a limited form of prescience to safely navigate interstellar space in a starship called a...

      Melange-mutated humans able to safely navigate interstellar space (using prescience) in ships called Heighliners.


H

  • Handlers  Humanoid race who bred and trained Futar
    Futar
    Futars are a fictional race in the Dune universe, introduced briefly in Heretics of Dune and appearing in Chapterhouse: Dune and Hunters of Dune. They are primitive, humanoid creatures, brought as captives to the "million planets" by the Honored Matres...

    s to hunt Honored Matres
    Honored Matres
    The Honored Matres are a fictional matriarchal organization in Frank Herbert's science fiction Dune universe. They are described as an aggressive cult obsessed with power, violence and sexual domination...

    .
  • Harvester (also Harvester Factory or Crawler) "Large (often 120 metres by 40 metres) spice mining machine ... [with a] buglike body on independent tracks."
  • Heighliner  Enormous carrier starship
    Starship
    A starship or interstellar spacecraft is a theoretical spacecraft designed for traveling between the stars, as opposed to a vehicle designed for orbital spaceflight or interplanetary travel....

    s used by the Spacing Guild for interstellar travel
    Interstellar travel
    Interstellar space travel is manned or unmanned travel between stars. The concept of interstellar travel in starships is a staple of science fiction. Interstellar travel is much more difficult than interplanetary travel. Intergalactic travel, or travel between different galaxies, is even more...

    .
  • High Council "The Landsraad
    Landsraad
    The Landsraad is a fictional organization in Frank Herbert's Dune universe. It is the assembly of all noble Houses in the Imperium.-Overview:...

     inner circle empowered to act as supreme tribunal in House to House disputes."
  • Holtzman effect
    Holtzman effect
    The Holtzman effect is a fictional scientific phenomenon in the Dune universe created by Frank Herbert, beginning with the 1965 novel Dune...

      Scientific phenomenon that makes (among other things) instantaneous space travel and defensive force shields possible.
  • Honored Matres
    Honored Matres
    The Honored Matres are a fictional matriarchal organization in Frank Herbert's science fiction Dune universe. They are described as an aggressive cult obsessed with power, violence and sexual domination...

      Violent matriarchal order formed in The Scattering.
  • Hunter-seeker "Ravening sliver of suspensor-buoyed metal guided as a weapon by a nearby control console
    Remote control
    A remote control is a component of an electronics device, most commonly a television set, used for operating the television device wirelessly from a short line-of-sight distance.The remote control is usually contracted to remote...

    ; common assassination
    Assassination
    To carry out an assassination is "to murder by a sudden and/or secret attack, often for political reasons." Alternatively, assassination may be defined as "the act of deliberately killing someone, especially a public figure, usually for hire or for political reasons."An assassination may be...

     device." Floating in mid-air, it kills by entering the body and following nerve pathways to vital organs. A hunter-seeker is employed in Dune in an assassination attempt on Paul Atreides
    Paul Atreides
    Paul Atreides is a fictional character in the Dune universe created by Frank Herbert. Paul is a prominent character in the first two novels in the series, Dune and Dune Messiah , and returns in Children of Dune . The character is brought back as two different gholas in the Brian Herbert/Kevin J...

    .

I

  • Inkvine "Creeping plant native to Giedi Prime
    Giedi Prime
    Giedi Prime is a fictional planet in Frank Herbert's 1965 science fiction novel Dune. A planet of Ophiuchi B , it is the homeworld of the vicious House Harkonnen, the sworn enemies of House Atreides.-Description:...

     and frequently used as a whip in its slave pens. Victims are marked by beet-colored tattoos that cause residual pain for many years."
  • Ixian damper Portable device which hides words from anyone without the proper coded translator, and projects distortions that hide the precise movements of lips and the sounds of voices. It is described as a "black disc" buoyed midair by suspensors.
  • Ixian Probe  Device used to capture the thoughts of a person (living or dead) for analysis; can be blocked by the substance shere.

J

  • Jihad, Butlerian
    Butlerian Jihad
    The Butlerian Jihad is an event in the back-story of Frank Herbert's fictional Dune universe. Occurring over 10,000 years before the events chronicled in his 1965 novel Dune, this jihad leads to the outlawing of certain technologies, primarily "thinking machines", a collective term for computers...

      Mankind's "crusade against computers, thinking machines, and conscious robots."
  • Judge of the Change "An official appointed by the Landsraad
    Landsraad
    The Landsraad is a fictional organization in Frank Herbert's Dune universe. It is the assembly of all noble Houses in the Imperium.-Overview:...

     High Council and the Emperor
    Padishah Emperor
    Padishah Emperor is the title given to the hereditary rulers of the Old Empire in the science fiction Dune universe created by Frank Herbert.-Original series:...

     to monitor a change of fief
    Fiefdom
    A fee was the central element of feudalism and consisted of heritable lands granted under one of several varieties of feudal tenure by an overlord to a vassal who held it in fealty in return for a form of feudal allegiance and service, usually given by the...

    , a kanly negotiation, or formal battle in a War of Assassins. The Judge's arbitral authority may be challenged only before the High Council with the Emperor present."

K

  • Kanly "Formal feud or vendetta
    Feud
    A feud , referred to in more extreme cases as a blood feud, vendetta, faida, or private war, is a long-running argument or fight between parties—often groups of people, especially families or clans. Feuds begin because one party perceives itself to have been attacked, insulted or wronged by another...

     under the rules of the Great Convention carried on according to the strictest limitations."
  • Kralizec Long-foretold "Typhoon Struggle" or final "battle at the end of the universe."
  • Krimskell fiber/Krimskell rope "The 'claw fiber' woven from strands of the hufuf vine from Ecaz. Knots tied in krimskell will claw tighter and tighter to preset limits when the knot-lines are pulled."
  • Kwisatz Haderach
    Kwisatz Haderach
    In Frank Herbert's fictional Dune universe, Kwisatz Haderach is a term which refers to a prophesied messiah and superbeing. In the series, the Bene Gesserit, a matriarchal secret society, hope to create a male who can survive the deadly ritual spice agony that changes a capable female acolyte into...

      Bene Gesserit label applied to "the unknown for which they sought a genetic solution: a male Bene Gesserit whose organic mental powers would bridge space and time."

L

  • Landsraad
    Landsraad
    The Landsraad is a fictional organization in Frank Herbert's Dune universe. It is the assembly of all noble Houses in the Imperium.-Overview:...

      The Assembly of all nobles in the Imperium.
  • Lasgun  Handheld energy weapon, technically a "continuous-wave laser projector;" also lasegun.
  • Laza tiger A breed of tiger brought to Salusa Secundus
    Salusa Secundus
    Salusa Secundus is a fictional planet appearing in Frank Herbert's Dune universe. With harsh conditions rivaling those of the desert planet Arrakis, Salusa is used as the Imperial Prison Planet, and is one of two planets on which shigawire is grown .-Dune:In "Terminology of the Imperium," the...

     "almost eight thousand years" before the events of Children of Dune
    Children of Dune
    Children of Dune is a 1976 science fiction novel by Frank Herbert, third in a series of six novels set in his Dune universe. Initially selling over 75,000 copies, it became the first hardcover best-seller ever in the science fiction field...

    . "Genetic manipulation of the ancient Terran stock had erased some of the original tiger features and refined other elements. The fangs remained long. Their faces were wide, eyes alert and intelligent. The paws were enlarged to give them support on uneven terrain and their sheathed claws could extend some ten centimeters, sharpened at the ends into razor tips by abrasive compression of the sheath. Their coats were a flat and even tan which made them almost invisible against sand."
  • Little Maker  The "half-plant-half-animal deep-sand vector of the Arrakis
    Arrakis
    Arrakis  — informally known as Dune and later called Rakis — is a fictional desert planet featured in the Dune series of novels by Frank Herbert. Herbert's first novel in the series, 1965's Dune, is popularly considered one of the greatest science fiction novels of all time, and it is...

     sandworm
    Sandworm (Dune)
    The sandworm is a fictional form of desert-dwelling creature from the Dune universe created by Frank Herbert. They first appear in the 1965 novel Dune, considered to be among the classics in the science fiction genre, and are iconic of the Dune series.In the series, the sandworms called Shai-Hulud...

    ," whose "excretions form the pre-spice mass."
  • Lost Tleilaxu
    Lost Tleilaxu
    The Lost Tleilaxu are a fictional organization from the Dune universe created by Frank Herbert. Descendants of the Tleilaxu, they are first mentioned in Herbert's Heretics of Dune ; however, the group is not referred to explicitly as "Lost Tleilaxu" until the 2006 Brian Herbert/Kevin J...

      Offshoot race of the Bene Tleilax
    Bene Tleilax
    The Bene Tleilax or Tleilaxu are an extremely xenophobic and isolationist society in Frank Herbert's science fiction Dune universe. Genetic manipulators who traffic in biological products such as artificial eyes, gholas, and "twisted" Mentats, the Tleilaxu are a major power in the Imperium...

    , formed in The Scattering.
  • Levenbrech A military rank that is roughly in between a sergeant and a lieutenant.

M

  • Mahdi "In the Fremen messianic
    Messiah
    A messiah is a redeemer figure expected or foretold in one form or another by a religion. Slightly more widely, a messiah is any redeemer figure. Messianic beliefs or theories generally relate to eschatological improvement of the state of humanity or the world, in other words the World to...

     legend, 'The One Who Will Lead Us to Paradise;'" applied to Paul Atreides by the Fremen when they determine that he is their prophesied messiah.
  • Maker hooks "The hooks used for capturing, mounting, and steering a sandworm of Arrakis."
  • Maula pistol "Spring-loaded gun for firing poison darts; range about 40 metres."
  • Melange  Highly-addictive drug essential to space travel, extended life, and therefore to the survival of the universe.
  • Mentat
    Mentat
    A Mentat is a profession or discipline in Frank Herbert's fictional Dune universe. Mentats are humans trained to mimic computers: human minds developed to staggering heights of cognitive and analytical ability.- Overview :...

    s Individuals trained as "human computers," their minds developed to staggering heights of cognitive and analytical ability.
  • Missionaria Protectiva  An arm of the Bene Gesserit charged with spreading contrived myths, prophecies and superstition on primitive worlds so that the Bene Gesserit may later exploit those regions.
  • Muad'Dib
    Muad'Dib
    Muad'Dib is a desert mouse within Frank Herbert's Dune universe. It is also the name for a constellation of stars and is taken as a name by the first novel's hero, Paul Atreides.-Dune glossary:...

      "The adapted kangaroo mouse
    Kangaroo mouse
    A kangaroo mouse is either one of the two species of jumping mouse native to the deserts of the Southwestern United States, predominantly found in the state of Nevada. Although native to the deserts in the southwest they have been plentiful in Missouri and Pennsylvania...

     of Arrakis, a creature associated in the Fremen earth-spirit mythology with a design visible on the planet's second moon. This creature is admired by Fremen for its ability to survive in the open desert." In Dune, Paul Atreides
    Paul Atreides
    Paul Atreides is a fictional character in the Dune universe created by Frank Herbert. Paul is a prominent character in the first two novels in the series, Dune and Dune Messiah , and returns in Children of Dune . The character is brought back as two different gholas in the Brian Herbert/Kevin J...

     takes "Muad'Dib" as his Fremen name, which takes on greater significance when he is perceived as a messiah
    Messiah
    A messiah is a redeemer figure expected or foretold in one form or another by a religion. Slightly more widely, a messiah is any redeemer figure. Messianic beliefs or theories generally relate to eschatological improvement of the state of humanity or the world, in other words the World to...

    .
  • Muadru  Ancient religion predating the Old Empire
    Old Empire (Dune)
    The Old Empire is a fictional galactic empire in the Dune universe created by Frank Herbert. The term has been applied to two distinct eras in the fictional history of the Dune series.-The Padishah Empire:...

     before the Time of the Titan
    Titan (Dune)
    The Titans are a group of fictional characters in the Legends of Dune series of novels, written by Brian Herbert and Kevin J. Anderson and set in the Dune universe created by Frank Herbert...

    s.

N

  • na-Baron Noble title given to a Baron
    Baron
    Baron is a title of nobility. The word baron comes from Old French baron, itself from Old High German and Latin baro meaning " man, warrior"; it merged with cognate Old English beorn meaning "nobleman"...

    's heir-apparent.
  • No-chamber  Construct that hides anything inside from prescient and ocular vision, as well as other methods of detection.
  • No-ship  No-chamber in spaceship form, with enough limited prescience to be capable of interstellar travel without a Guild Navigator.
  • Nullentropy Technology akin to the science fiction
    Science fiction
    Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

     concept of stasis
    Stasis (fiction)
    Stasis , or hypersleep, is a science fiction concept akin to suspended animation. Whereas suspended animation usually refers to a greatly reduced state of life processes, stasis implies a complete cessation of these processes, which can be easily restarted or restart spontaneously when stasis is...

    , in which the natural processes of time, such as decomposition, are ceased. In this way, perishable matter such as food and even human cells may be stored for millennia and remain undamaged.

O

  • Obliterators Weapons of mass destruction stolen by Honored Matres from their "outside enemy;" they combust the atmosphere of a planet and subsequently its surface.
  • Other Memory  The combined ego and memories of all female ancestors, which a Bene Gesserit may be trained to access.
  • Ornithopter (or 'Thopter) "Aircraft capable of sustained wing-beat flight in the manner of birds;" one of the primary modes of transportation on the desert planet
    Desert planet
    A desert planet is a single-biome planet on which the climate is mostly desert, with little or no natural precipitation. Desert planets are known to exist; Mars is often considered a prime example. Indeed, many terrestrial planets would be considered desert planets by this definition...

     Arrakis
    Arrakis
    Arrakis  — informally known as Dune and later called Rakis — is a fictional desert planet featured in the Dune series of novels by Frank Herbert. Herbert's first novel in the series, 1965's Dune, is popularly considered one of the greatest science fiction novels of all time, and it is...

    .

P

  • Palm lock "Lock or seal which can be opened only by contact with the palm of the human hand to which it has been keyed."
  • Phibian  Primitive and amphibious
    Amphibian
    Amphibians , are a class of vertebrate animals including animals such as toads, frogs, caecilians, and salamanders. They are characterized as non-amniote ectothermic tetrapods...

     humanoid creatures, a genetic mix of man and fish.
  • Plasteel Extremely tough form of steel, "stabilized with stravidium fibers grown into its crystal structure."
  • Plaz (or windowplaz) Synthetic glass, used for windows (especially in aircraft and spaceships) due to its superior strength.
  • Poison snooper "Radiation analyzer within the olfactory spectrum and keyed to detect poisonous substances."
  • Powindah Tleilaxu term for all outsiders, whom they consider "unclean" sinners and heretics.
  • Prana-bindu Training providing a Bene Gesserit with complete muscle control (Prana nervature relates to nervous system control).
  • Pre-spice mass  The "stage of fungusoid wild growth achieved when water is flooded into the excretions of Little Makers. At this stage, the spice of Arrakis forms a characteristic 'blow,' exchanging the material from deep underground for the matter on the surface above it. This mass, after exposure to sun and air, becomes melange."
  • Probe, Ixian  Device used to capture the thoughts of a person (living or dead) for analysis; can be blocked by the substance shere.
  • Probe, T  Device used to capture the thoughts of a person (living or dead) for analysis; unlike an Ixian Probe, it cannot be blocked by the substance shere.
  • Pundi rice "A mutated rice whose grains, high in natural sugar, achieve lengths up to four centimeters; chief export of Caladan
    Caladan
    Caladan is a fictional planet in the Dune universe created by Frank Herbert, first mentioned in the 1965 novel Dune.-Overview:Caladan, the third planet of Delta Pavonis, is the ancestral fiefdom of House Atreides, who have ruled it for twenty-six generations, from the ancient Castle Caladan...

    ."

Q

  • Qanat
    Qanat
    A qanāt is a water management system used to provide a reliable supply of water for human settlements and irrigation in hot, arid and semi-arid climates...

      "Open canal for carrying irrigation water under controlled conditions through a desert."

R

  • Residual poison "Innovation attributed to the Mentat Piter De Vries
    Piter De Vries
    Piter De Vries is a fictional character from the Dune universe created by Frank Herbert. He is featured in 1965's Dune, the original novel in the science fiction series, as well as the Prelude to Dune prequel trilogy by Brian Herbert and Kevin J. Anderson.In David Lynch's 1984 adaptation of the...

     whereby the body is impregnated with a substance for which repeated antidote
    Antidote
    An antidote is a substance which can counteract a form of poisoning. The term ultimately derives from the Greek αντιδιδοναι antididonai, "given against"....

    s must be administered; withdrawal of the antidote at any time brings death."
  • Reverend Mother  Bene Gesserit who has survived a ritual wherein she consciously transforms a toxic dose of melange into a non-poisonous substance at the molecular level, thereby raising herself to a higher level of awareness and enabling her to access Other Memory.

S

  • Salusan bull Fierce and very aggressive creature with compound eyes and multiple horns, used in bullfighting
    Bullfighting
    Bullfighting is a traditional spectacle of Spain, Portugal, southern France and some Latin American countries , in which one or more bulls are baited in a bullring for sport and entertainment...

     on Caladan
    Caladan
    Caladan is a fictional planet in the Dune universe created by Frank Herbert, first mentioned in the 1965 novel Dune.-Overview:Caladan, the third planet of Delta Pavonis, is the ancestral fiefdom of House Atreides, who have ruled it for twenty-six generations, from the ancient Castle Caladan...

     and originating from Salusa Secundus
    Salusa Secundus
    Salusa Secundus is a fictional planet appearing in Frank Herbert's Dune universe. With harsh conditions rivaling those of the desert planet Arrakis, Salusa is used as the Imperial Prison Planet, and is one of two planets on which shigawire is grown .-Dune:In "Terminology of the Imperium," the...

    .
  • Sandworm
    Sandworm (Dune)
    The sandworm is a fictional form of desert-dwelling creature from the Dune universe created by Frank Herbert. They first appear in the 1965 novel Dune, considered to be among the classics in the science fiction genre, and are iconic of the Dune series.In the series, the sandworms called Shai-Hulud...

      Giant sand-dwelling creatures native to Arrakis. Called Shai-Hulud by the Fremen and worshipped as deities.
  • Sapho "High-energy liquid extracted from barrier roots of Ecaz. Commonly used by Mentat
    Mentat
    A Mentat is a profession or discipline in Frank Herbert's fictional Dune universe. Mentats are humans trained to mimic computers: human minds developed to staggering heights of cognitive and analytical ability.- Overview :...

    s who claim it amplifies mental powers. Users develop deep ruby stains on mouth and lips."
  • Sardaukar
    Sardaukar
    The Sardaukar are a fictional fanatical army from Frank Herbert's Dune universe, primarily featured in the 1965 science fiction novel Dune, as well as Brian Herbert and Kevin J...

      Ferocious "soldier-fanatics" of the Padishah Emperor
    Padishah Emperor
    Padishah Emperor is the title given to the hereditary rulers of the Old Empire in the science fiction Dune universe created by Frank Herbert.-Original series:...

    , later disbanded by Leto II.
  • Sareer  Last desert of Arrakis in the time of Leto Atreides II
    Leto Atreides II
    Leto Atreides II is a fictional character from the Dune universe created by Frank Herbert. Born at the end of Dune Messiah , Leto is a central character in Children of Dune and is the title character of God Emperor of Dune . The character is brought back as a ghola in the Brian Herbert/Kevin J...

    , location of his Citadel; guarded by D-wolves.
  • Sayyadina  Among the Fremen, the Sayyadina ("Friend of God" in Chakobsa) is a priestess who has not yet passed within to become a Reverend Mother. When a Sayyadina undergoes the spice agony, another is then consecrated into the Sayyadina to continue the line of succession.
  • Scattering, The  Event after the reign of Leto II in which trillions of people left the settled worlds of the Old Empire
    Old Empire (Dune)
    The Old Empire is a fictional galactic empire in the Dune universe created by Frank Herbert. The term has been applied to two distinct eras in the fictional history of the Dune series.-The Padishah Empire:...

    , striking off into unknown space.
  • Selamlik "Imperial audience chamber."
  • Semuta "Second narcotic derivative (by crystal extraction) from the burned residue of elacca wood [from Ecaz]. The effect (described as timeless, sustained ecstasy) is elicited by certain atonal vibrations referred to as semuta music."
  • Shai-Hulud
    Sandworm (Dune)
    The sandworm is a fictional form of desert-dwelling creature from the Dune universe created by Frank Herbert. They first appear in the 1965 novel Dune, considered to be among the classics in the science fiction genre, and are iconic of the Dune series.In the series, the sandworms called Shai-Hulud...

      Fremen name for the sandworms of Arrakis.
  • Shere Significant presence of this substance in the body will block the use of an Ixian Probe or T-Probe from recovering memories.
  • Shigawire "Metallic extrusion of a ground vine (Narvi narviium) grown only on Salusa Secundus
    Salusa Secundus
    Salusa Secundus is a fictional planet appearing in Frank Herbert's Dune universe. With harsh conditions rivaling those of the desert planet Arrakis, Salusa is used as the Imperial Prison Planet, and is one of two planets on which shigawire is grown .-Dune:In "Terminology of the Imperium," the...

     and III Delta Kaising. It is noted for extreme tensile strength" and is used as a recording medium as well as a garrote
    Garrote
    A garrote or garrote vil is a handheld weapon, most often referring to a ligature of chain, rope, scarf, wire or fishing line used to strangle someone....

     weapon.
  • Sietch Cave warren inhabited by a Fremen tribal community; in the Fremen language, "Place of assembly in time of danger."
    • For a real-world lake wave caused by an earthquake, see seiche
      Seiche
      A seiche is a standing wave in an enclosed or partially enclosed body of water. Seiches and seiche-related phenomena have been observed on lakes, reservoirs, swimming pools, bays, harbors and seas...

      . For the real-world Cossack fort, see Zaporizhian Sich
      Zaporizhian Sich
      Zaporizhian Sich was socio-political, grassroot, military organization of Ukrainian cossacks placed beyond Dnieper rapids. Sich existed between the 16th and 18th centuries in the region around the today's Kakhovka Reservoir...

      .
  • Sietch orgy (or sietch tau orgy) Fremen ritual of unrestrained sexual indulgence which takes place after a Reverend Mother shares the changed Water of Life
    Water of Life (Dune)
    The Water of Life is a fictional drug from Frank Herbert's science fiction Dune universe.In Terminology of the Imperium, the glossary of the 1965 novel Dune, Herbert provided the following definition:...

     with her community.
  • Siridar A planetary governor.
  • Slig  Livestock animal, hybrid of a large slug and a pig, considered a delicacy.
  • Snooper, Poison "Radiation analyzer within the olfactory spectrum and keyed to detect poisonous substances."
  • Solido "Three-dimensional image from a solido projector using 360-degree reference signals imprinted on a shigawire reel."
  • Soostone Valuable iridescent gem produced on Buzzell by the abraded carapaces of monoped sea creatures called Cholisters, much in the manner of pearl
    Pearl
    A pearl is a hard object produced within the soft tissue of a living shelled mollusk. Just like the shell of a mollusk, a pearl is made up of calcium carbonate in minute crystalline form, which has been deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other...

    s.
  • Spacing Guild
    Spacing Guild
    The Spacing Guild is an organization in Frank Herbert's science fiction Dune universe. With its monopoly on interstellar travel and banking, the Guild is a balance of power against the Padishah Emperor and the assembled noble Houses of the Landsraad...

      Powerful organization with a monopoly on space travel and transport due to their Navigators
    Guild Navigator
    A Guild Navigator is a fictional humanoid in the Dune universe created by Frank Herbert. Humans mutated through the consumption of and exposure to massive amounts of the spice melange, they are able to use a limited form of prescience to safely navigate interstellar space in a starship called a...

    .
  • Spice agony  Fremen version of the ritual used by the Bene Gesserit to create Reverend Mothers, using the Water of Life
    Water of Life (Dune)
    The Water of Life is a fictional drug from Frank Herbert's science fiction Dune universe.In Terminology of the Imperium, the glossary of the 1965 novel Dune, Herbert provided the following definition:...

     instead of melange.
  • Steersman Title given to Guild Navigators.
  • Stillsuit  "Body-enclosing garment" of Fremen design which performs the "functions of heat dissipation and filtering bodily wastes," as well as retaining and reclaiming moisture.
  • Stilltent "Small, scalable enclosure of micro-sandwich fabric designed to reclaim as potable water the ambient moisture discharged within it by the breath of its occupants."
  • Stone burner  Atomic weapon, the explosion and radiation of which can be precisely adjusted depending on the desired effect. A stone burner with sufficient fuel can burn through the crust of a planet to the mantle or core, potentially causing a release of energy destroying the surface of the planet on which the weapon is deployed. Stone burners emit "J-Rays," a form of radiation that has an affinity for destroying the eyes of anyone surviving the initial radiation blast.
  • Suk School Prominent medical school
    Medical school
    A medical school is a tertiary educational institution—or part of such an institution—that teaches medicine. Degree programs offered at medical schools often include Doctor of Osteopathic Medicine, Bachelor/Doctor of Medicine, Doctor of Philosophy, master's degree, or other post-secondary...

     whose doctors are the universe's most competent and trusted; those who have received the "Suk Imperial Conditioning" bear a diamond tattoo on their foreheads, wear their hair in a special silver ring, and are incapable of inflicting harm. However, the fallibility of Suk training is proven in Dune
    Dune (novel)
    Dune is a science fiction novel written by Frank Herbert, published in 1965. It won the Hugo Award in 1966, and the inaugural Nebula Award for Best Novel...

    (1965) when Baron Vladimir Harkonnen
    Vladimir Harkonnen
    The Baron Vladimir Harkonnen is a fictional character from the Dune universe created by Frank Herbert. He is primarily featured in the 1965 novel Dune, in which he is the secondary antagonist, and is also a major character in the Prelude to Dune prequel trilogy by Brian Herbert and Kevin J. Anderson...

     and his twisted Mentat Piter De Vries
    Piter De Vries
    Piter De Vries is a fictional character from the Dune universe created by Frank Herbert. He is featured in 1965's Dune, the original novel in the science fiction series, as well as the Prelude to Dune prequel trilogy by Brian Herbert and Kevin J. Anderson.In David Lynch's 1984 adaptation of the...

     manage to subvert this conditioning and coerce Suk Dr. Wellington Yueh
    Wellington Yueh
    Dr. Wellington Yueh is a fictional character in the Dune universe created by Frank Herbert. He is primarily featured in the 1965 novel Dune, but also appears in the Prelude to Dune prequel trilogy by Brian Herbert and Kevin J. Anderson...

     into helping him in his attempt to destroy House Atreides
    House Atreides
    House Atreides is a fictional noble family from the Dune universe created by Frank Herbert. One of the Great Houses of the feudal interstellar empire known as the Imperium, its members play a role in every novel in the series. It is suggested within the series that the root of the Atreides line...

    .
  • Suspensor  Any of a number of 'hovering' devices which utilize the "secondary (low-drain) phase of a Holtzman field generator" to nullify gravity
    Gravitation
    Gravitation, or gravity, is a natural phenomenon by which physical bodies attract with a force proportional to their mass. Gravitation is most familiar as the agent that gives weight to objects with mass and causes them to fall to the ground when dropped...

     "within certain limits prescribed by relative mass and energy consumption." In Dune, the obese Baron Harkonnen
    Vladimir Harkonnen
    The Baron Vladimir Harkonnen is a fictional character from the Dune universe created by Frank Herbert. He is primarily featured in the 1965 novel Dune, in which he is the secondary antagonist, and is also a major character in the Prelude to Dune prequel trilogy by Brian Herbert and Kevin J. Anderson...

     uses suspensors to support his massive weight. Hunter-seekers also use suspensor fields for propulsion, which make them slippery and hard to grasp.

T

  • T-Probe  Device used to capture the thoughts of a person (living or dead) for analysis. shere only prevents the T-Probe from recovering memories directly (as it does for the Ixian Probe) and does not impede any of the other features. The model created by the operation of this probe can be interrogated to give an idea of how the person would have reacted to a set of stimuli, possibly giving insight into a shere-loaded prisoner.
  • Tachyon net (or tachyon web) Technology (involving faster-than-light
    Faster-than-light
    Faster-than-light communications and travel refer to the propagation of information or matter faster than the speed of light....

     tachyon
    Tachyon
    A tachyon is a hypothetical subatomic particle that always moves faster than light. In the language of special relativity, a tachyon would be a particle with space-like four-momentum and imaginary proper time. A tachyon would be constrained to the space-like portion of the energy-momentum graph...

     particles) used by Daniel and Marty in their attempt to track and capture the no-ship Ithaca.
  • Thinking machines
    Thinking machines (Dune)
    Thinking machines is a collective term for artificial intelligence in the Dune universe created by Frank Herbert. The Butlerian Jihad a human crusade against thinking machines is an epic turning point in the back-story of the Dune universe...

      Intelligent and sentient machines, created by humans, who enslaved much of humanity and eventually incited the Butlerian Jihad.
  • 'Thopter (Ornithopter) "Aircraft capable of sustained wing-beat flight in the manner of birds."
  • Thorse A six-legged pack animal bred for its stability.
  • Thumper "Short stake with a spring-driven clapper at one end", placed in the sand to 'call' sandworms, who are attracted to vibration and sound.
  • Titans
    Titan (Dune)
    The Titans are a group of fictional characters in the Legends of Dune series of novels, written by Brian Herbert and Kevin J. Anderson and set in the Dune universe created by Frank Herbert...

      Ancient dictators whose brains were transplanted into fearsome, weaponized machine bodies to achieve immortality
    Immortality
    Immortality is the ability to live forever. It is unknown whether human physical immortality is an achievable condition. Biological forms have inherent limitations which may or may not be able to be overcome through medical interventions or engineering...

    .
  • Tleilaxu
    Bene Tleilax
    The Bene Tleilax or Tleilaxu are an extremely xenophobic and isolationist society in Frank Herbert's science fiction Dune universe. Genetic manipulators who traffic in biological products such as artificial eyes, gholas, and "twisted" Mentats, the Tleilaxu are a major power in the Imperium...

     (or Bene Tleilax) Secretive and powerful patriarchal race known for their genetic manipulation technologies.
  • Truthsayer  Bene Gesserit Reverend Mother trained to "detect insincerity or falsehood."

U

  • Umma "One of the brotherhood of prophets; a term of scorn in the Imperium, meaning any 'wild' person given to fanatical prediction."
  • Usul Fremen word, meaning "The strength of the base of the pillar;". This is Paul's secret "sietch name" (known only to his tribe) given to him upon his joining the Fremen.

V

  • Verite Will-destroying narcotic from Ecaz that "renders a person incapable of falsehood."
  • Voice  Training that allows the Bene Gesserit "to control others merely by selected tone shadings of the voice."

W

  • War of Assassins Regulated form of warfare between noble houses, intended to "reduce involvement of innocent bystanders." The rules require "formal declarations of intent and restrict permissible weapons."
  • Water of Life
    Water of Life (Dune)
    The Water of Life is a fictional drug from Frank Herbert's science fiction Dune universe.In Terminology of the Imperium, the glossary of the 1965 novel Dune, Herbert provided the following definition:...

      Toxic liquid exhalation of a drowning sandworm, used by Fremen Reverend Mothers in the spice agony.
  • Weirding way  Specialized martial art component of Bene Gesserit prana-bindu.
  • Whale fur Valuable commodity noted to be the original source of House Harkonnen
    House Harkonnen
    House Harkonnen is a powerful noble family in Frank Herbert's fictional Dune universe. The Harkonnens are featured prominently in the original 1965 novel Dune, and are also a major presence in both the Prelude to Dune and Legends of Dune prequel trilogies by Brian Herbert and Kevin J. Anderson...

    's wealth. Princess Irulan is described wearing whale fur multiple times, including during her meeting with her fellow conspirators in Dune Messiah
    Dune Messiah
    Dune Messiah is a science fiction novel by Frank Herbert, the second in a series of six novels. It was originally serialized in Galaxy magazine in 1969. The American and British editions have different prologues summarizing events in the previous novel...

    . The Prelude to Dune
    Prelude to Dune
    Prelude to Dune is a prequel trilogy of novels written by Brian Herbert and Kevin J. Anderson, set in Frank Herbert's Dune universe....

    prequel series establishes it to be the fur of the Bjondax whales of Lankiveil, a planet controlled by the Harkonnens.
  • Windowplaz (or simply plaz) Synthetic glass, used for windows (especially in aircraft and spaceships) due to its superior strength.
  • Windtrap Type of air well
    Air well (condenser)
    An air well or aerial well is a structure or device that collects water by promoting the condensation of moisture from air. Designs for air wells are many and varied, but the simplest designs are completely passive, require no external energy source and have few, if any, moving parts.Three...

     "placed in the path of a prevailing wind and capable of precipitating moisture from the air caught within it, usually by a sharp and distinct drop in temperature within the trap."

Z

  • Zensunni
    Zensunni
    The Religions of Dune are a key aspect of the fictional setting of the Dune universe created by Frank Herbert. Many of the names of religions mentioned in the novels indicate they are blends of current belief systems, some syncretic....

      Ancient religious sect, ancestors of the Fremen. (See also Zen Buddhism and Sunni Islam
    Sunni Islam
    Sunni Islam is the largest branch of Islam. Sunni Muslims are referred to in Arabic as ʾAhl ūs-Sunnah wa āl-Ǧamāʿah or ʾAhl ūs-Sunnah for short; in English, they are known as Sunni Muslims, Sunnis or Sunnites....

    .)

See also

  • Technology of the Dune universe
    Technology of the Dune universe
    The technology of the Dune universe is a key aspect of the fictional setting of the Dune series of science fiction novels written by Frank Herbert, and derivative works. Herbert's concepts and inventions have been analyzed and deconstructed in at least one book, The Science of Dune...

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