M3, M-3 or M03 may refer to:
  • M3 (economics), a measure of the money supply
  • Metribolone
    Metribolone, is a potent, non-aromatizable androgen which has also been used as a photoaffinity label for the androgen receptor...

  • M3, a metric screw
    A screw, or bolt, is a type of fastener characterized by a helical ridge, known as an external thread or just thread, wrapped around a cylinder. Some screw threads are designed to mate with a complementary thread, known as an internal thread, often in the form of a nut or an object that has the...



  • Cubic meter
    Cubic metre
    The cubic metre is the SI derived unit of volume. It is the volume of a cube with edges one metre in length. An alternative name, which allowed a different usage with metric prefixes, was the stère...

     (m3), a unit of volume
  • Messier 3
    Messier 3
    Messier 3 is a globular cluster in the constellation Canes Venatici. It was discovered by Charles Messier in 1764, and resolved into stars by William Herschel around 1784. This cluster is one of the largest and brightest, and is made up of around 500,000 stars. It is located at a distance of...

     (M3), a globular cluster in the constellation Canes Venatici
  • M3 Receptor
    Muscarinic acetylcholine receptor M3
    The muscarinic acetylcholine receptor M3, also known as the cholinergic receptor, muscarinic 3, is a muscarinic acetylcholine receptor. It is encoded by the human gene CHRM3....

    , an acetylcholine muscarinic receptor
  • ATC code M03
    ATC code M03
    -M03AA Curare alkaloids:-M03AA Curare alkaloids:-M03AA Curare alkaloids::M03AA01 Alcuronium:M03AA02 Tubocurarine:M03AA04 Dimethyltubocurarine-M03AC Other quaternary ammonium compounds::M03AC01 Pancuronium:M03AC02 Gallamine:M03AC03 Vecuronium...

     Muscle relaxants, a subgroup of the Anatomical Therapeutic Chemical Classification System

Computers and electronics

  • Modula-3
    In computer science, Modula-3 is a programming language conceived as a successor to an upgraded version of Modula-2 known as Modula-2+. While it has been influential in research circles it has not been adopted widely in industry...

     (M3), a programming language
  • M3, a British peak programme meter
    Peak programme meter
    A peak programme meter is an instrument used in professional audio for indicating the level of an audio signal.There are many different kinds of PPM. They fall into broad categories:...

     standard used for measuring the volume of audio broadcasts
  • M3, amateur Radio
    Amateur radio
    Amateur radio is the use of designated radio frequency spectrum for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication...

     callsign prefix in the United Kingdom
  • Macro processor m3 written by Dennis Ritchie
    Dennis Ritchie
    Dennis MacAlistair Ritchie , was an American computer scientist who "helped shape the digital era." He created the C programming language and, with long-time colleague Ken Thompson, the UNIX operating system...

     for the AP-3 minicomputer. m3 is the predecessor to m4
    M4 (computer language)
    m4 is a general purpose macro processor designed by Brian Kernighan and Dennis Ritchie. m4 is an extension of an earlier macro processor m3, written by Ritchie for the AP-3 minicomputer.-Use:...



  • M3 adapter, a Game Boy Advance movie player
  • M3 Music Card
    M3 Music Card
    The M3 Music Card from the Chinese company Meizu, is a Flash-based MP3 player that allows users to play MP3, WMA, WAV, FLAC and OGG audio files. The player is also capable of video playback at 25FPS on its 1.5-inch screen. Also included is an FM tuner, voice recorder, calendar, stopwatch,...

    , a 2007 Chinese company Meizu Flash-based MP3 player
  • Metroid 3
  • Mother 3
    Mother 3
    Mother 3 is a role-playing video game developed by Nintendo, Brownie Brown and HAL Laboratory, and published for the Game Boy Advance handheld game console. It has only been released in Japan, alongside a limited supply bundle. It is the third video game in the Mother series, following EarthBound...

  • M3 Simply, see Nintendo DS storage devices#R4DS and M3 DS Simply
  • M3 Real, see Nintendo DS storage devices#R4DS and M3 DS Simply
  • M3 R&B Group (Memphis, Mobile, and Montgomery)
  • M3(band), A Korean band group
  • M3: Malay Mo Ma-develop
    M3: Malay Mo Ma-develop
    M3: Malay Mo Ma-develop is a Philippine romantic comedy-drama series on ABS-CBN, starring Aga Muhlach and Ai Ai delas Alas.. On November 6, 2010 the ABS-CBN network confirmed that the show has been canceled due to the low rating comparing there other sit.com. The final episode has been aired last...

    , a Philippine TV series.


  • BMW M3
    BMW M3
    The BMW M3 is a high-performance version of the BMW 3 Series, developed by BMW's in-house motorsport division, BMW M. M3 models have been derived from the E30, E36, E46 and E90/E92/E93 3-series, and sold with coupé, sedan and convertible body styles...

    , a high-performance compact executive car
    Compact executive car
    Compact executive car is a car classification term applied to premium cars smaller than executive cars. In European classification, compact executive cars are part of the D-segment. In North American terms, close equivalents are compact premium car, compact luxury car, entry-level luxury car and...

     produced by German automaker BMW
    Bayerische Motoren Werke AG is a German automobile, motorcycle and engine manufacturing company founded in 1916. It also owns and produces the Mini marque, and is the parent company of Rolls-Royce Motor Cars. BMW produces motorcycles under BMW Motorrad and Husqvarna brands...

  • M3 (railcar), a railcar used by the Long Island Rail Road and Metro-North Railroad, United States
  • Miles M.3 Falcon, a 1930s British four-seat cabin monoplane
  • ABSA - Aerolinhas Brasileiras
    ABSA - Aerolinhas Brasileiras
    ABSA Cargo Airline is a cargo airline based in Campinas, Brazil. It operates scheduled services within Latin America and between Brazil and the United States, as well as charter services...

    's IATA airline designator


  • M-3 (Michigan highway)
    M-3 (Michigan highway)
    M-3 is a north–south state highway in the US state of Michigan in the Detroit metropolitan area. For most of its length, M-3 is known as Gratiot Avenue...

    , a state highway in the Detroit metropolitan area
  • M3 road (Cape Town), an expressway in Cape Town, South Africa
  • M3 motorway (Great Britain), a motorway in England
  • M3 motorway (Hungary)
    M3 motorway (Hungary)
    The M3 is a Hungarian motorway connecting Budapest to Nyíregyháza. It will eventually connect Budapest to the Ukrainian border. Two other motorways branch off it, the M30 and the M35 . The M3 follows the route of route 3, and, later, route 4...

    , a motorway in Hungary
  • M3 motorway (Northern Ireland)
    M3 motorway (Northern Ireland)
    The M3 is an urban motorway 0.8 miles in length owned by Siac Construction and Cintra, S.A. that connects the M2 in north Belfast, Northern Ireland to the A2 Sydenham Bypass in east Belfast. It is the shortest motorway in Northern Ireland, and one of the busiest, carrying 60,000 vehicles per...

    , an urban motorway in Belfast, Northern Ireland
  • M3 motorway (Pakistan)
    M3 motorway (Pakistan)
    The M3 is a motorway that links the city of Faisalabad with the M2 motorway. The M3 will eventually become an important link connecting southern Pakistan with the north. It is only 53 km long making it the shortest motorway of Pakistan. It has 2 junctions in between.-Route:The M3 starts at...

  • Russian route M3, another name for the Ukraine Highway in Russia
  • M3 freeway or Eastern Freeway (Melbourne) and EastLink (Melbourne) in Victoria, Australia
  • M3 Motorway, a tolled motorway alternative running parallel to the N3 road (Ireland)

Rail routes

  • Bucharest Metro Line M3, Romania
  • Line M3 - Milan Subway (Metropolitana di Milano)
    Line M3 - Milan Subway (Metropolitana di Milano)
    The Milan Metro Line 3, , is a subway line serving Milan, Italy. The line is part of the Milan Metro and is operated by ATM. Construction began in 1986 in order to be ready for the 1990 Football World Cup...

  • Line 3 (Budapest Metro)
    Line 3 (Budapest Metro)
    The Metro 3 is the longest line of Budapest Metro. It connects the northern Újpest, and the southern Kőbánya-Kispest. Daily ridership: 626,179.-History:...

    , the third line of Budapest Metro, Hungary

Bus routes

  • Route M-3 (MTA Maryland), a former bus route in Baltimore, Maryland
  • Route M3 (Manhattan), a bus route in Manhattan


  • M3 Records
    M3 Records
    M3 Records is an American independent hip hop record label in New York City, headed by rapper Masta Ace. The label was founded in 2003, nearly two years after Ace's former label, JCOR Records, folded. The first nationally distributed release on the label was Ace's fifth studio album A Long Hot...

    , a record label
  • Major third
    Major third
    In classical music from Western culture, a third is a musical interval encompassing three staff positions , and the major third is one of two commonly occurring thirds. It is qualified as major because it is the largest of the two: the major third spans four semitones, the minor third three...

     (M3), a type of musical interval
  • Minor third
    Minor third
    In classical music from Western culture, a third is a musical interval encompassing three staff positions , and the minor third is one of two commonly occurring thirds. The minor quality specification identifies it as being the smallest of the two: the minor third spans three semitones, the major...

     (m3), a type of musical interval
  • M3 (album)
    M3 (album)
    M3 is the third album released by the industrial metal band Mushroomhead. It was released in 1999 on their own label. The songs Before I Die, Solitaire/Unraveling, Xeroxed and Born of Desire were later included on both the Eclipse Records and Universal Records versions of XX in 2001.-Track...

    , an album by Mushroomhead
  • M3 (band)
    M3 (band)
    M3 is an experimental rock group founded by brothers Roger Miller, Ben Miller and Larry Miller. Their name is a dual reference to the three M surnames, and also pun on the musical notation for a minor third....

    , an American rock band
  • M3, a band that featured former Whitesnake
    Whitesnake are an English rock band, founded in 1978 by David Coverdale after his departure from his previous band, Deep Purple. The band's early material has been compared by critics to Deep Purple, but by the mid 1980s they had moved to a more commercial hard rock style...

     members Bernie Marsden
    Bernie Marsden
    -External links:*...

    , Micky Moody
    Micky Moody
    Michael Joseph "Micky" Moody is an English guitarist, and a former member of the rock bands Juicy Lucy and Whitesnake. He was also a founder-member of Snafu. Together with his former Whitesnake colleague Bernie Marsden he founded the Moody Marsden Band, and later, The Snakes...

    , and Neil Murray
    Neil Murray (British musician)
    Philip Neil Murray is a Scottish bass player, best known for his work in Whitesnake and Black Sabbath.-Early days:Originally a drummer, Murray formed his first band with school friends in 1967 and his musical tastes were heavily influenced by the mid-1960s 'blues boom' bands and musicians,...

  • Korg M3
    Korg M3
    Korg M3 is a music workstation synthesizer manufactured by Korg Corporation and introduced at the Winter NAMM show during January, 2007. It hit the streets 4 months later. The M3 is the successor of the famous Triton series...

    , a workstation synthesizer


  • 37 mm Gun M3, a light American anti-tank gun
  • 105 mm Howitzer M3
    105 mm Howitzer M3
    The 105 mm Howitzer M3 was a U.S. light howitzer designed for use by airborne troops. The gun utilized the barrel of the 105 mm Howitzer M2, shortened and fitted to a slightly modified split trail carriage of the 75 mm pack howitzer....

    , an American light artillery piece
  • Benelli M3 Super 90, an Italian semi-automatic shotgun
  • .50 M3 machine gun, a variant of the M2HB Browning machine gun
  • M3 Fighting Knife
    M3 Fighting Knife
    The M3 Fighting Knife or M3 Trench Knife was an American military combat knife first issued in March 1943. The M3 was originally designated for issue to soldiers not otherwise equipped with a bayonet...

     a World War II American issue knife
  • M3 submachine gun
    M3 submachine gun
    The M3 was an American .45-caliber submachine gun adopted for U.S. Army service on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3. The M3 was designed as a more cost-effective alternative to the Thompson, optimized for mass production...

     (AKA: Grease Gun), an American submachine gun,
  • M3, a code name for a United States military mission at Roosevelt Roads Naval Station
    Roosevelt Roads Naval Station
    Roosevelt Roads Naval Station is a former United States military air base in the town of Ceiba, Puerto Rico. The site is run today as José Aponte de la Torre Airport, a public use airport.-History:...

     in Puerto Rico
  • M3 20mm cannon, a United States development of the Hispano-Suiza HS.404
    Hispano-Suiza HS.404
    The Hispano-Suiza HS.404 was an autocannon widely used as both an aircraft and land weapon in the 20th century by British, American, French, and numerous other military services. The cannon is also referred to as Birkigt type 404, after its designer. Firing a 20 mm caliber projectile, it delivered...


  • M3 Amphibious Rig
    M3 Amphibious Rig
    The M3 Amphibious Rig is a self-propelled amphibious bridging vehicle that is used for the projection of tanks and other vehicles across water obstacles.-Development and service:...

    , a German self-propelled amphibious bridging vehicle
  • M3 Bradley
    M3 Bradley
    The M3 Bradley Cavalry Fighting Vehicle is an American tracked armored reconnaissance vehicle manufactured by BAE Systems Land and Armaments based on the Bradley Fighting Vehicle family. The M3 CFV is used by heavy armored cavalry units in the U.S. Army.-History:The M3 Bradley was originally...

    , an American infantry fighting vehicle
  • M3 Grant, a medium tank that was a variant of the M3 Lee
  • M3 Half-track
    M3 Half-track
    The Carrier, Personnel Half-track M3 was an armored vehicle used by the United States, the British Empire and the other Allies during World War II and the Cold War. Nearly 43,000 were produced, and supplied to the U.S...

    , an armored military vehicle
  • M3 Lee
    M3 Lee
    The Medium Tank M3 was an American tank used during World War II. In Britain the tank was called "General Lee", named after Confederate General Robert E. Lee, and the modified version built with a new turret was called the "General Grant", named after U.S. General Ulysses S. Grant.Design commenced...

    , an American medium tank
  • Panhard M3
    Panhard M3
    The Panhard M3 VTT , armoured personnel carrier was designed as a private venture with the first prototype completed in 1969. The prototype had a single door in each side of the hull and twin doors in the hull rear...

     PTT, a French armored personnel carrier
  • M3 Scout Car
    M3 Scout Car
    The M3 Scout Car was an armored car in U.S. service during World War II. It was also known as the White Scout Car, after its manufacturer, the White Motor Company. It was used in various roles including patrol, scouting, command vehicle, ambulance and gun tractor.-History:Design of the vehicle...

    , an American armored vehicle
  • M3 Stuart, an American light tank
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