| MC | mass casualties; mast cell; Master of Surgery [Lat. Magister Chirurgiae]; maximum concentration; Med... |
|---|---|
| ACC | accommodation; acetyl coenzyme A carboxylase; acinic cell carcinoma; acute care center; adenoid cyst... |
| Gm | an allotype marker on the heavy chains of immunoglobins |
| mar | margin; marker [chromosome] |
| mar(X) | marker X [chromosome] |