| NB | nail bed; neuro-Behc;cet [syndrome]; neuroblastoma; neurometric battery; newborn; nitrous oxide-barb... |
|---|---|
| NMOS | N-type metal oxide semiconductor |
| NO | narcotics officer; nitric or nitrous oxide; none obtained; nonobese; nurse's office |
| NOS | network operating system; nitric oxide synthetase; non-organ-specific; not on staff; not otherwise s... |
| 4NQO | 4-nitroquinoline 1-oxide |