| MDM | medical decision making; mid-diastolic murmur; minor determinant mix [penicillin] |
|---|---|
| MID | maximum inhibiting dilution; mesioincisodistal; midinfarct dementia; minimum infective dose; minimum... |
| mid | middle |
| MSB | Master of Science in Bacteriology; mid-small bowel; most significant bit |
| MSU | maple sugar urine; maple syrup urine; medical studies unit; mid-stream urine; monosodium urate; myoc... |