AC

Look up AC or ac in Wiktionary, the free dictionary.

AC may refer to:

Science

• Actinium (Ac), a chemical element
• Acetaldehyde (Ac), an organic ion
• Acetate (Ac), an organic ion
• Acetyl (Ac), a functional group in chemistry
• Acromioclavicular joint in humans and other animals, frequently injured in sport
• Adenylate cyclase, an enzyme
• Chemotherapy regimens, Adriamycin and cyclophosphamide, a chemotherapy regimen used to treat breast cancer
• Alpha Centauri, a star system in the constellation Centaurus
• Alternating current, a type of electric current
  • AC power, a net transfer of energy over a complete cycle of the alternating current waveform
• Animal communication
• Anterior commissure, a small bundle of nerve fibres that connect the right and left temporal lobes
• Anticipated convection, the code for severe thunderstorm forecasts issued daily for the contiguous U.S. by the Storm Prediction Center
• AC Power Cable, a type of power cable used by electricians
• Artificial consciousness
• Astrographic Catalogue, a star catalogue
• Axiom of choice, a mathematical set theory concept

Places

• Aachen, Germany, uses the number plate code AC
• Acre (state), Brazil, is abbreviated AC
• Västerbotten County, Sweden
• Atlantic City, New Jersey

Computing

• Accumulator (computing), a register in the CPU that stores intermediate ALU results
• AC (complexity), a hierarchy of complexity classes found in circuit complexity
• .ac, Internet top-level domain name for Ascension Island
• .ac (second level), Internet second-level domain used to denote academic institutions in many countries
• Anonymous Coward, in the Slashdot online environment
• Arctic Cooling, a Swiss manufacturer of heatsinks, cooling fans and computer cases
• Authorization certificate or attribute certificate, a digital permission to use a service or resource
• Auto clickers, in the MMORPGs gaming community

Job titles / ranks

• A person appointed Companion Of The Order of Australia
• Aelod y Cynulliad, the title for Members of the National Assembly for Wales
• Aircraftman
• Assistant Commissioner of Police of the Metropolis

Sports

• A.C. Milan, one of the most successful Italian clubs
• America's Cup
• Athletic Club de Bilbao, full name of Athletic Bilbao

Entertainment

• AC, the name of the ultimate computer at the end of time in Isaac Asimov's The Last Question
• After Colony, an alternate timeline in the Gundam metaseries for the universe of Gundam Wing
• Albert Clifford, character in the American sitcom Saved by the Bell
• "Alt Cataclius" or "After Cataclysm", a historical era in the timeline for the Dragonlance fictional universe
• Arthur Curry, Aquaman in Smallville
• Armor Class, a combat-related parameter in the Dungeons & Dragons role playing game system
• Final Fantasy VII Advent Children, a movie sequel to the game Final Fantasy VII

Video games

• Ace Combat, a series of combat flight simulator games
• Alliance Character as used by Horde players in the MMORPG World of Warcraft
• Animal Crossing (series), a series of real-time village simulations by Nintendo
• Armored Core, a series featuring the eponymous robotic fighter under the player's control
• Arvoch Conflict, a shareware flight simulator by Star Wraith 3D Games
• Asheron's Call, a fantasy massively multiplayer online role-playing genre
• Assassin's Creed, a platformer/stealth video game
• AssaultCube, a first-person shooter based upon the Cube engine
• "AC" is an abbreviation for "Arcade game", and often used as a suffix to designate a new or separate version, or revision, of a game:
  • Melty Blood: Act Cadenza, a 2D fighting game featuring characters from Tsukihime
  • Guilty Gear XX Accent Core, a 2D fighting game, part of the Guilty Gear series
  • Tekken 5 on the PlayStation 2 features a mode that allows one to play the arcade versions of Tekken, Tekken 2, and Tekken 3, labeled "AC"

Music

• AC/DC, a rock group
• Adult contemporary music, a music genre also used to describe broadcast radio stations
• Animal Collective, an experimental music group
• Anal Cunt, a grindcore band
• A.C. - an American rapper.
• "AC", a song by Axium from Alive in Tulsa

Organizations

• Action Congress
• Ad Council
  • Ad Council Japan (AC Japan)
• Akademikernes Centralorganisation, the Danish Confederation of Professional Associations
• Alianza Costeña
• Alternativa por el Cambio, a political party in Nicaragua
• Anglican Communion
• Appellate court
• Astronomy club, common in schools and tertiary institutions
• Alianţa Civică, the Romanian name for the Civic Alliance Foundation, an NGO
• Ayala Corporation has the ticker symbol "AC" on the Philippine Stock Exchange
• Asociación Civil, a title for non profit organizations in Spanish-speaking countries
• AC Cars, British car manufacturer of the famous AC Cobra model

Schools

• Aquinas College (disambiguation)
• Atlantic College, one of the twelve United World Colleges
• Assumption College, Worcester, Massachusetts, USA
• Austin College, Sherman, Texas, USA

Miscellaneous

• Abdominal Circumference
• Advisory Circular (e.g. AC 20-115B), an acronym used by FAA
• Anthrocon, the largest furry convention in the world held in Pittsburgh Philadelphia
• Air conditioning (and air conditioner), the mechanical process of cooling air in enclosed spaces
• Andrew Christian, an American fashion designer
• Ante Christum, a Latin term meaning "before Christ"
• Antichrist, in the Christian religion
• Average cost, in economics
• Another name for the Ansuz rune
• Anarcho-capitalism a form of free-market anarchism
• Associated Content

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