AST - Definition and Overview

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

• 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.
• AST is an abbreviation for two time zones:
  • Alaskan Standard 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.