| KD | cathodal duration; Kawasaki disease; Kennedy disease; killed |
|---|---|
| MBD | Marchiafava-Bignami disease; Mental Deterioration Battery; methylene blue dye; minimal brain damage;... |
| MCD | magnetic circular dichroism; mast-cell degranulation; mean cell diameter; mean of consecutive differ... |
| MDV | Marek disease virus; mean dye [bolus] velocity; mucosal disease virus |
| MJD | Machado-Joseph disease; Mseleni joint disease |