| NRCC | National Registry in Clinical Chemistry; National Research Council of Canada |
|---|---|
| NRCL | nonrenal clearance |
| NRDL | Naval Radiological Defense Laboratory |
| NREH | normal renin essential hypertension |
| NREM | Non-Rapid Eye Movement |
| NREM | nonrapid eye movement [sleep] |
| NREMT-P | nationally registered emergency medical technician-paramedic |
| NREN | National Research and Education Network |
| NRF | Neurosciences Research Foundation; normal renal function |
| NRFC | nonrosette-forming cell |