Look up at in Wiktionary, the free dictionary.

Contents 1 Places 2 People 3 Science and Technology 4 Computing 5 Other uses

AT may mean:

Places

• Austria's ISO, 2-letter country code
  • .at, the Internet country code top-level domain for Austria
• Anguilla, a World Meteorological Organization country code
• Ashmore and Cartier Islands (FIPS 10-4 territory code and obsolete NATO country code
• Atchison County, Kansas (county code)
• Asti, a province of Italy in the ISO 3166-2:IT code

People

• Abel Tasman, seventeenth century Dutch explorer and merchant
• Andres Tarand, Estonian politician and geographer
• Aphex Twin, electronic musician
• Ashley Tisdale, actress and singer

Science and Technology

• Astatine, the chemical symbol for the element
• Ampere-turn (symbol), an International System of Units (MKS) unit of magnetomotive force
• a subdivision equal to 1/100 of a Kip, the unit of currency in Laos
• attotesla, an SI unit of magnetic flux density
• technical atmosphere (symbol), physical unit of pressure
• Aarne-Thompson classification system
• Acceptance test
• Análisis Transaccional (Spanish "Transactional analysis"), a psychological method
• Ataxia telangiectasia, an immunodeficiency disorder
• Appropriate Technology
• Assistive technology
• Automatic transmission
• Antithrombin
• Activity Therapy

Computing

• IBM Personal Computer/AT
  • AT form factor for motherboards and computer cases
  • The common name for the 5-pin DIN keyboard connector
• Hayes command set for computer modems (all commands begin with the characters "AT")
• "@", the punctuation symbol now typically used in e-mail addresses
• at (Unix), to schedule tasks to be performed at a later date
• at (Windows), to schedules other commands to be run at a certain time

Other uses

• Ahsoka Tano
• Alimentary tract
• Atmel Corporation
• Anaerobic threshold
• Tamper resistance aka Anti-tamper, resistance to tampering of a product, package, or system
• Anti-tank weapons
• Counter-terrorism, also known as "anti-terrorism" (AT)
• Appalachian Trail
• Audit trail
• Aviation Electronics Technician, a rating in the United States Navy
• Royal Air Maroc (IATA airline designator)
• Alton Towers
• Alkaline Trio, a US rock band

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