| MAS | metabolic activation system |
|---|---|
| MAS NMR | Magic-angle spinning nuclear magnetic resonance |
| MASA | Mutant allele specific amplification |
| MASP | MBL)-associated serine protease |
| MASS | Massachusetts |
| MAST | Medical Anti-Shock Trousers |
| MAST | Michigan Alcohol Screening Test |
| MAST | Michigan Alcoholism Screening Test |
| MAST | Military Anti-Shock Trouser |