| MA | malignant arrhythmia; management and administration; mandelic acid; masseter; Master of Arts; matern... |
|---|---|
| MBL | Marine Biological Laboratory; menstrual blood loss; minimum bactericidal level |
| MC | mass casualties; mast cell; Master of Surgery [Lat. Magister Chirurgiae]; maximum concentration; Med... |
| MDQ | memory deviation quotient; Menstrual Distress Questionnaire; minimum detectable quantity |
| MH | malignant histiocytosis; malignant hyperpyrexia; malignant hypertension; malignant hyperthermia; mam... |