| Abbreviation | Definition |
|---|---|
| MC | multicell |
| MC | muscle contraction |
| MC | myoepithelial cell |
| MCA | Medical Control Agency |
| MCA | Mental Capacity Act |
| MCA | methylated CpG island amplification |
| MCA | motorcycle accident |
| MCA | mucinous cystadenoma |
| MCA | multiple congenital anomalies |
| MCCD | Medical Certificate Cause of Death |
| MCCD | medical certificate of cause of death |
| MChD | Magister Chirurgiae Dentium, Master of Dental Surgery |
| MChOrth | Magister Chirurgiae Orthopaedium, Master of Orthopaedic Surgery |
| MCHS | myocerebrohepatopathy spectrum |
| MCHS | myocerebrohepatopathy syndrome |
| MCI | mandibular cortical index |
| MCI | manually controlled infusion |
| MCI | mean cardiac index |
| MCI | mucociliary clearability index |
| MCI | multiple casualty incident |