AT

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AT or at may refer to:

Geography[edit]

Austria[edit]

  • Austria (ISO 2-letter country code)
  • .at, Internet country code top-level domain

United States[edit]

Elsewhere[edit]

Politics[edit]

Science and technology[edit]

Computing[edit]

Biology and medicine[edit]

Physics and chemistry[edit]

  • Astatine (symbol At), a chemical element
  • 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]

Other uses[edit]

See also[edit]