| Abbreviation | Definition |
|---|---|
| MA | Material Authorization |
| MA | Metabolic Analyzer |
| MA | Microphone Amplifier |
| MA | Middeck Act |
| mA | Milliampere |
| MA | Missed Approach |
| MA | Mission Analysis |
| MA | Mission Assignment |
| MA | Multiple Access |
| MA&P | Maintenance Analysis and Planning |
| MA&T | Manufacturing, Assembly, and Test |
| MAA | Mathematical Association of America |
| MAA | Mechanical Arm Assembly |
| MAAB | Materials Application Advisory Board |
| MAAR | Monthly Associate Administrator's Review |
| MAB | Master Acquisition Bus |
| MAB | Materials Advisory Board |
| MAB | Materials Applications Board |
| MAB | Mechanical Automation Breadboard |
| MAB | Missile Assembly Building |