| NOS | network operating system; nitric oxide synthetase; non-organ-specific; not on staff; not otherwise s... |
|---|---|
| NYD | not yet diagnosed; not yet discovered |
| REM | 1) Rapid Eye Movement; 급속 안구 운동 2) Radiation Equivalent to Man |
| rem | Roentgen Equivalent Man 1 rem = 1 rad x RBE |
| ETKTM | every test known to man |