| MM | macromolecule; Maelzels metronome; major medical [insurance]; malignant melanoma; manubrium to malle... |
|---|---|
| MMAD | mass median aerodynamic diameter |
| MMD | mass median diameter; minimum morbidostatic dose; moyamoya disease; myotonic muscular dystrophy |
| MMS | mass mammographic screening; Master of Medical Science; methyl methanesulfonate; Mini-Mental State |
| Mr | relative molecular mass |