AT

Prefix

 * 1)  ; prefix for astronomical transients in official IAU astronomical event and object notation. The  IAU is the official international arbiter of naming of astronomical objects and events in the field of astronomy.

Proper noun

 * 1) Altes Testament (OT; Old Testament)

Noun

 * 1) automatic transmission

Etymology
.

Proper noun

 * 1) OT (Old Testament)

Noun

 * 1) (medical) internship..

Proper noun

 * 1)  European Community; EC.