| NSE | neuron-specific enolase; nonspecific esterase; normal saline enema |
|---|---|
| NSGI | nonspecific genital infection |
| NSR | nasal septal reconstruction; nonspecific reaction; normal sinus rhythm; no sign of recurrence; not s... |
| NSSTT | nonspecific ST and T [wave] |
| NSU | neurosurgical unit; nonspecific urethritis |