| MARC | machine-readable cataloging; multifocal and recurrent choroidopathy |
|---|---|
| MARCKS | myristoylated alanine-rich protein C kinase substrate |
| MARS | magnetic anchor retinal stimulation; methionyl-transfer ribonucleic acid synthetase; mouse antirat serum |
| MARSA | methicillin-aminoglycoside-resistant Staphylococcus aureus |
| MART | multiplicative algebraic reconstruction technique |
| MAS | Meconium Aspiration Syndrome; 태변(양수)흡인증후군 = Massive Aspiration Syndrome; 양수 대량 흡인 증후군 = Meconium Aspiration Pneumonia태변 흡인성 폐렴 |
| MAS | magic angle spinning; Manifest Anxiety Scale; maximum average score; McCune-Albright syndrome; meconium aspiration syndrome; medical advisory service; medical audit study; mesoatrial shunt; milk-alkali syndrome; milliampere-second; minor axis shortening; mobile arm support; monoclonal antibodies; Morgagni-Adams-Stokes [syndrome]; motion analysis system |
| MASA | Medical Association of South Africa; mental retardation-aphasia-shuffling gait-adducted thumbs [syndrome] |
| masc | masculine; mass concentration |
| MASER | microwave amplification by stimulated emission of radiation |