| NOS | network operating system; nitric oxide synthetase; non-organ-specific; not on staff; not otherwise specified |
|---|---|
| NOSAC | nonsteroidal anti-inflammatory compound |
| NOSIC | Neurologic Outcome Scale for Infants and Children |
| NOSIE | Nurses' Observation Scale for Inpatient Evaluation |
| NOSTA | Naval Ophthalmic Support and Training Activity |