| METS | metabolic equivalents [of oxygen consumption] |
|---|---|
| MHLS | metabolic heat load stimulator |
| MI | first meiotic metaphase; maturation index; medical illustrator; medical informatics; medical inspect... |
| MMR | mass miniature radiography; masseter muscle rigidity; maternal mortality rate; measles-mumps-rubella... |
| MNMS | myonephropathic metabolic syndrome |