| LOCM | low molecular contrast medium |
|---|---|
| LSM | late systolic murmur; lymphocyte separation medium; lysergic acid morpholide |
| MBM | mineral basal medium |
| MC | mass casualties; mast cell; Master of Surgery [Lat. Magister Chirurgiae]; maximum concentration; Med... |
| MCAD | medium chain acyl-CoA dehydrogenase |