| MDQ | memory deviation quotient; Menstrual Distress Questionnaire; minimum detectable quantity |
|---|---|
| MDR | median duration of response; medical device reporting; minimum daily requirement; multidrug resistan... |
| MDS | Master of Dental Surgery; maternal deprivation syndrome; medical data screening; medical data system... |
| MDS+ | minimum data set (plus) |
| MEC | median effective concentration; middle ear canal; middle ear cell; minimum effective concentration |