| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
|---|---|
| NTD | neural tube defect; nitroblue tetrazolium dye; noise tone difference; 5'-nucleotidase |
| SDCN | N-syndectan, neural syndectan |
| SEGNE | secretory granules of neural and endocrine [cells] |