| HMC | hand-mirror cell; health maintenance cooperative; heroin, morphine, and cocaine; histocompatibility ... |
|---|---|
| QMF | quadrature mirror filter |
| MAR | main admissions room; marasmus; marrow; maximal aggregation ratio; medication administration record;... |
| mar | margin; marker [chromosome] |
| mar(X) | marker X [chromosome] |