| MSDC | Mass Spectrometry Data Centre |
|---|---|
| MSDS | material safety data sheet |
| NAHDO | National Association of Health Data Organizations |
| ND | Doctor of Naturopathy; nasal deformity; natural death; Naval Dispensary; neonatal death; neoplastic ... |
| NDA | National Dental Association; New Drug Application; no data available; no detectable activity; no det... |