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At&T Promotion Code To Waive Activation Fee March,2019. For printable coupons only, enter link to printable pdf or image of coupon. At definition, (used to indicate a point or place occupied in space); in, on, or near: to stand at the door; at the bottom of the barrel.

The word at is an English word, which may act as a preposition.

AT (or similar) may also refer to:

• 2Science and technology

Places[edit]

• 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)
• Province of Asti, a province of Italy in the ISO 3166-2:IT code
• At, Bihar, a village in Aurangabad district, Bihar
• Appalachian Trail, an over 2,000 mile long trail in the eastern United States

Science and technology[edit]

In computing[edit]

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• @ (or 'at sign'), the punctuation symbol now typically used in e-mail addresses (and more recently, tweets)
• at (command), a command used to schedule tasks or other commands to be performed or run at a certain time
• IBM Personal Computer/AT
  • AT form factor for motherboards and computer cases
  • A five-pin DIN connector for a keyboard
• Hayes command set for computer modems (all commands begin with the characters 'AT')

In biology and medicine[edit]

• Anaerobic threshold, in physiology
• Análisis transaccional (Spanish for 'transactional analysis'), a psychological method
• Antithrombin, a small protein molecule that inactivates several enzymes of the coagulation system
• Ataxia telangiectasia, an immunodeficiency disorder

In physics and chemistry[edit]

• Astatine, a chemical element with symbol At
• Ampere-turn (symbol At), an International System of Units (MKS) unit of magnetomotive force
• Attotesla, 10⁻¹⁸ tesla, an SI derived unit of magnetic flux density
• Technical atmosphere (symbol at), a physical unit of pressure

Other uses in science and technology[edit]

• Acceptance test, in engineering
• Appropriate technology, an ideological movement founded by economist Dr. Ernst Friedrich 'Fritz' Schumacher
• Assistive technology, devices for people with disabilities
• Anti-tank weapon
• Automatic transmission, in vehicles

Other uses[edit]

• At, a subdivision equal to 1/100 of a Kip, the unit of currency in Laos
• Archive Team, a digital preservation group
• Aliança da Terra, a Brazilian non-governmental organization
• Aarne-Thompson classification system, used to classify folktales
• Aviation Electronics Technician, a rating in the United States Navy
• Auckland Transport, responsible for public transport in Auckland, New Zealand
• Royal Air Maroc (IATA airline designator)

See also[edit]

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