| Abbreviation | Definition |
|---|---|
| AGWs | Acoustic-Gravity Waves |
| AH | algebra AH |
| AH | Arithmetical Hierarchy |
| AHP | Analytic Hierarchy Process |
| AI | Absolute Infinity |
| AI | Algebraically Independent |
| AI | All Inclusive |
| AIC | Akaike Information Criterion |
| AICc | Akaike Information Criterion, corrected |
| AIM | Advanced Integration Method |
| AIM | Alice Interactive Mathematics |
| AIM | All Inclusive Method |
| AIM | American Inst of Mathematics |
| AIM | American Institute of Mathematics |
| AIME | American Invitational Mathematics Examination |
| AIMS | Academic Investment in Mathematics and Science |
| AIMS | Activities For Integrating Mathematics And Science |
| AIMS | African Institute for Mathematical Sciences |
| AIMS | Albuquerque Institute for Mathematics and Science |
| AIR | Additive Increase Rate |