Geography

• Arm (geography)
  Arm (geography)
  In geography, an arm is a narrow extension, inlet, or smaller reach, of water from a much larger body of water, like an ocean, sea, or lake. Although different geographically, a sound or bay may be called an arm....
  
  , a narrow stretch of a larger body of water
  • Canal arm, a subsidiary branch of a canal or inland waterway
  • Distributary
    Distributary
    A distributary, or a distributary channel, is a stream that branches off and flows away from a main stream channel. They are a common feature of river deltas. The phenomenon is known as river bifurcation. The opposite of a distributary is a tributary...
    
     or arm, a subsidiary branch of a river
• Arm River (disambiguation), a river and several adjacent areas in Saskatchewan, Canada
• Armenia
  Armenia
  Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...
  
  's country code
• Armenian language
  Armenian language
  The Armenian language is an Indo-European language spoken by the Armenian people. It is the official language of the Republic of Armenia as well as in the region of Nagorno-Karabakh. The language is also widely spoken by Armenian communities in the Armenian diaspora...
  
  's language code

Organizations

• Animal Rights Militia
  Animal Rights Militia
  The Animal Rights Militia is a banner used by animal rights activists who engage in direct action that ignores the Animal Liberation Front's policy of taking all necessary precautions to avoid harm to human and non-human life.-History:...
  
  
• African Resistance Movement, an anti-apartheid movement in South Africa
• Army of the Republic of Macedonia
• Association of Radical Midwives
  Association of Radical Midwives
  The Association of Radical Midwives is a UK Organisation for Midwives, Doulas, Mothers, and anyone concerned with the health of maternity services.ARM was created in 1976, and is a registered charity...
  
  , an amateur radio organization in Macao, an amateur radio organization in Moldova
• Association of Railway Museums
  Association of Railway Museums
  The Association of Railway Museums is an organization dedicated to promoting the interests of railway preservation across North America in museums and other non-profit organizations.ARM publishes a quarterly newsletter, Railway Museum Quarterly...
  
  , an organization in North America
• Association of Recovering Motorcyclists
  Association of Recovering Motorcyclists
  The Association of Recovering Motorcyclists is an independent motorcycle association founded in 1986 Judy and Jack Jensen. The association currently has chapters in the United States, Canada, Australia, Sweden and Denmark...
  
  
• Australian Republican Movement
  Australian Republican Movement
  The Australian Republican Movement is a non-partisan lobby group advocating constitutional change in Australia to a republican form of government, from a constitutional monarchy.-Foundation:...
  
  
• Autism rights movement
  Autism rights movement
  The autism rights movement is a social movement that encourages autistic people, their caregivers and society to adopt a position of neurodiversity, accepting autism as a variation in functioning rather than a mental disorder to be cured...
  
  

Technology

• Application Response Measurement
  Application Response Measurement
  Application Response Measurement is an open standard published by the Open Group for monitoring and diagnosing performance bottlenecks within complex enterprise applications that use loosely-coupled designs or service-oriented architectures....
  
  , an open standard for diagnosing performance bottlenecks
• ARM architecture
  ARM architecture
  ARM is a 32-bit reduced instruction set computer instruction set architecture developed by ARM Holdings. It was named the Advanced RISC Machine, and before that, the Acorn RISC Machine. The ARM architecture is the most widely used 32-bit ISA in numbers produced...
  
  , a computer processor architecture
  • ARM Holdings
    ARM Holdings
    ARM Holdings plc is a British multinational semiconductor and software company headquartered in Cambridge. Its largest business is in processors, although it also designs, licenses and sells software development tools under the RealView and KEIL brands, systems and platforms, system-on-a-chip...
    
    , a British company that designs the ARM computer processors
• Abstract Rewriting Machine
  Abstract Rewriting Machine
  The Abstract Rewriting Machine is a virtual machine which implements term rewriting for minimal term rewriting systems.Minimal term rewriting systems are left-linear term rewriting systems in which each rule takes on one of six forms:...
  
  , a virtual machine
• Annotated reference manual, the definitive reference manual for a computer programming language
• Atmospheric Radiation Measurement
  Atmospheric Radiation Measurement
  The United States Department of Energy's Atmospheric Radiation Measurement Program was created in 1989 to develop several highly instrumented ground stations to study cloud formation processes and their influence on radiative transfer...
  
  , a program of the United States Department of Energy
• Anti-radiation missile
  Anti-radiation missile
  An anti-radiation missile is a missile which is designed to detect and home on an enemy radio emission source. Typically these are designed for use against an enemy radar, although jammers and even radios used for communication can also be targeted in this manner.- Air-to-Ground :Most ARM designs...
  
  
• Arm (software)
  Arm (software)
  The anonymizing relay monitor is a command-line status monitor for the Tor anonymity network. This functions much like top does for system usage, providing real time statistics for:* resource usage...
  
  , a CLI status monitor for Tor
• A firearm
  Firearm
  A firearm is a weapon that launches one, or many, projectile at high velocity through confined burning of a propellant. This subsonic burning process is technically known as deflagration, as opposed to supersonic combustion known as a detonation. In older firearms, the propellant was typically...
  
   or other weapon

Fiction

• ARM (novella)
  Arm (novella)
  ARM is a science fiction novella by American author Larry Niven. Set in the Known Space cycle, it is the third of five Gil Hamilton detective stories....
  
  , a novella by Larry Niven
  • Amalgamated Regional Militia, a fictional group from Larry Niven's Known Space universe
• ÄRM
  Arm
  In human anatomy, the arm is the part of the upper limb between the shoulder and the elbow joints. In other animals, the term arm can also be used for analogous structures, such as one of the paired forelimbs of a four-legged animal or the arms of cephalopods...
  
  , fictional magical weapons in MÄR
• Armageddon (MUD)
  Armageddon (MUD)
  Armageddon, frequently abbreviated Arm, is a low fantasy MUD — a text-based online role-playing game — set in a desert world called Zalanthas. It was founded in 1991 by Dan Brumleve, Nasri Hajj, and Santiago Zorzopulos in Urbana, Illinois...
  
  , a text-based online role-playing game

Other uses

• Eta Capricorni
  Eta Capricorni
  Eta Capricorni is a binary star in the constellation Capricornus. It also has the traditional star name Arm. It is approximately 158 light years from Earth....
  
   or Arm, a binary star
• Artificial rupture of membranes
  Artificial rupture of membranes
  Artificial rupture of membranes can be used for labor induction.A sterile, plastic, thin hook is brushed against the membranes just inside the cervix, causing the fetal head to move down against the cervix, usually resulting in the contractions becoming stronger and eventually causing the membranes...
  
  , a method of stimulating childbirth
• Adjustable-rate mortgage, a type of mortgage loan, an obsolete currency code, a ship prefix of the Mexican Navy