| NDR | neonatal death rate; normal detrusor reflex |
|---|---|
| NDS | Naval Dental School; neurologic deficit score; new drug submission; normal dog serum |
| NED | no evidence of disease; no expiration date; normal equivalent deviation |
| NF | nafcillin; National Formulary; nephritic factor; neurofibromatosis; neurofilament; neutral fraction;... |
| NFTD | normal full term delivery |