| AST | navigating according to the positions of the stars |
|---|---|
| AST | a genus of dicotyledonous plants of the family Anacardiaceae |
| AST | tall tropical American timber tree especially abundant in eastern Brazil |
| AST | a physicist who studies astronomy |
| AST | inconceivably large |
| AST | relating or belonging to the science of astronomy |
| AST | inconceivably large |
| AST | relating or belonging to the science of astronomy |
| AST | any telescope designed to collect and record electromagnetic radiation from cosmic sources |
| AST | a unit of length used for distances within the solar system |
| AST | the time for the earth to make one revolution around the sun, measured between two vernal equinoxes |
| AST | enormously |