| NMR | neonatal mortality rate; nictitating membrane response; nuclear magnetic resonance |
|---|---|
| NVM | neovascular membrane; nonvolatile matter |
| OAM | outer acrosomal membrane |
| OM | obtuse mental; occipitomental; occupational medicine; ocular movement; oculomotor; Osborne Mendel [r... |
| OMM | outer mitochondrial membrane |