| Abbreviation | Definition |
|---|---|
| MCN[ | Managed Clinical Networks |
| MCQ | medical care quality |
| MCQ | Memory Compensation Questionnaire |
| MCQ | multiple-choice questions (MCQ) |
| MCRG | Medical Career Research Group |
| MCRG | This term got 38 hits on 22.10.2011, mostly on lists of abbreviations and acronyms and probably is retired. |
| MD | myocardial disease |
| MDA | manual dilation of the anus |
| MDA | MD anaesthesiologist |
| MDA | medical device alert |
| MDA | medical device amendments |
| MDA | megadalton |
| MDA | mento-dextra anteriorobstetrics |
| MDA | mento-dextra anterior–obstetrics |
| MDA | methydopamine |
| MDA | methylenedioxymethamphetamine/3,4-methylenedioxymethamphetamine (Ecstasy) |
| MDAP | multi-deanery appointment process (obsolete) |
| MDAU | maternal day assessment unit (day assessment unit) |
| MDBT | maternal day assessment unit (day assessment unit) |
| MDD | Doctor of Dental Medicine |