| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
|---|---|
| NRM | National Registry of Microbiologists; normal range of motion; nucleus reticularis magnocellularis |
| NROM | normal range of motion |
| pass | ROM passive range of motion |
| PSR | pain sensitivity range; perspective surface rendering; portal systemic resistance; proliferative sic... |