| NF | nafcillin; National Formulary; nephritic factor; neurofibromatosis; neurofilament; neutral fraction;... |
|---|---|
| NI | neuraminidase inhibition; neurological improvement; neutralization index; no information; noise inde... |
| NOS | network operating system; nitric oxide synthetase; non-organ-specific; not on staff; not otherwise s... |
| NYD | not yet diagnosed; not yet discovered |
| nr | ne repetatur; do not repeat; 반복을 금함 |