| MCCD | minimum cumulative cardiotoxic dose |
|---|---|
| MFD | mandibulofacial dysostosis; midforceps delivery; milk-free diet; minimum fatal dose; multiple fracti... |
| MMD | mass median diameter; minimum morbidostatic dose; moyamoya disease; myotonic muscular dystrophy |
| MND | minimum necrosing dose; minor neurological dysfunction; modified neck dissection; motor neuron disea... |
| MPED | minimum phototoxic erythema dose |