The word at is an English word, which may act as a preposition.
AT (or similar) may also refer to:
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)
- 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
In computing
- @ (or "at sign"), the punctuation symbol now typically used in e-mail addresses (and more recently, tweets)
- at (Unix), a command used to schedule tasks to be performed at a certain time
- at (Windows), a command used to schedule other commands to be 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
- 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
- Astatine, a chemical element with symbol At
- Ampere-turn (symbol At), an International System of Units (MKS) unit of magnetomotive force
- Attotesla, 10âˆ'18 tesla, an SI derived unit of magnetic flux density
- Technical atmosphere, a physical unit of pressure
Other uses in science and technology
- 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
- 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
- Royal Air Maroc (IATA airline designator)
See also
- All pages beginning with "AT"
- All pages with a title containing AT