| MCCU | mobile coronary care unit |
|---|---|
| MECTA | mobile electroconvulsive therapy apparatus |
| MICU | medical intensive care unit; mobile intensive care unit |
| MME | M-mode echocardiography; mobile medical equipment; mouse mammary epithelium |
| MMR | mass miniature radiography; masseter muscle rigidity; maternal mortality rate; measles-mumps-rubella... |