AST

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AST is a three-letter abbreviation that stands for a number of different things.

• In mathematics it refers to the Alternating series test.
• In medicine it refers to the enzyme aspartate transaminase.
• In computer science it means abstract syntax tree.
• AST Research, Inc. manufactured personal computers between 1980 and 1999. The name was then owned by AST Computers, LLC.
• In aviation, it means Advanced Supersonic Transport.
• In space, it means the Office of Commercial Space Transportation.
• AST is an abbreviation for two time zones:
  • Alaska Standard Time - note that "AKST" is commonly used to designate Alaska Standard Time, to distinguish between Atlantic and Alaskan time
  • Atlantic Standard Time
• AST Sports Science is a manufacturer and marketer of nutritional supplements.
• Asturian language (ISO 639 alpha-3, ast)
• Asynchronous System Traps, a feature of certain DEC operating systems.
• Alpha Sigma Tau is a popular sorority at colleges across the United States.
• ACT Scaling Test is a series of aptitude tests taken by Year 12 students in ACT, Australia.
• Andrew S. Tanenbaum (a well-known computer scientist) often uses this acronym as his identifier.
• Adequacy Style Troll
• The National Rail code for Aston railway station, United Kingdom.
• Alternative Set Theory
• Atlantic School of Theology
• Action Sociale Tchadienne or Chadian Social Action, a Chadian political party

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