| Abbreviation | Definition |
|---|---|
| MAST | motion artifact suppression technique |
| MAST | mRNA accessible site tagging |
| MAST | multi-agency support team |
| MAST | Multi-Attitude Suicide Tendency Scale |
| MATB1XX | Maternity Certificate B1 |
| MAU | Medical admission unit |
| MB | main bronchus |
| MB | Mallory body |
| MB | mamillary body |
| MB | mammillary body |
| MB | maternal blood |
| MB | Medicinae BaccalaureusBachelor of Medicine |
| MB | Medicinae Baccalaureus–Bachelor of Medicine |
| MB | medulloblastoma |
| MB | methyl bromide |
| MB | methylene blue |
| MB | midbrain |
| MB | myocardial bridge |
| MB | myoglobin |
| MBBChirXX | Bachelor of Medicine, Bachelor of Surgery, Latin, Medicinae Baccalaureus, Baccalaureus Chirurgiae |