| Abbreviation | Definition |
|---|---|
| AV | Average |
| AVG | Average |
| Avg. | Average |
| AVM | Attribute Value Matrix |
| AVO | Atomic Value Operator |
| AVS | Attribute Value Squares |
| AWM | Association for Women in Mathematics |
| AWM | Association of Women in Mathematics |
| AWMA | African Women in Mathematics Association |
| AWP | Algebra With Pizzazz |
| AWRT | Anything Which Rounds To The |
| B | Baryon number |
| B | Besselian |
| B | Bitwise |
| BA | Body Array |
| BAA | Best Affine Approximation |
| BACE | Bayesian Averaging of Classical Estimates |
| BACF | Bond Auto-Correlation Function |
| BAMC | British applied mathematics colloquium |
| BAMO | Bay Area Mathematical Olympiad |