| NCRV | National Committee for Radiation Victims |
|---|---|
| NERO | noninvasive evaluation of radiation output |
| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
| ORD | optical rotatory dispersion; oral radiation death |
| PAR | participating provider; passive avoidance reaction; perennial allergic rhinitis; photosynthetically ... |