| NPD | narcissistic personality disorder; natriuretic plasma dialysate; negative pressure device; Niemann-P... |
|---|---|
| NPH | neutral protamine Hagedorn (insulin) [not used anymore]; normal pressure hydrocephalus; nucleus pulp... |
| NPT | neoprecipitin test; nocturnal penile tumescence; normal pressure and temperature; sodium phosphate t... |
| NTP | National Toxicology Program; nitroprusside; normal temperature and pressure; nucleoside triphosphate... |
| NT&P | normal temperature and pressure |