| M-mode | motion mode |
|---|---|
| MU | megaunit; mescaline unit; methyluric [acid]; Montevideo unit; motion unsharpness; motor unit; mouse ... |
| NRM | National Registry of Microbiologists; normal range of motion; nucleus reticularis magnocellularis |
| NROM | normal range of motion |
| pass | ROM passive range of motion |