| Abbreviation | Definition |
|---|---|
| NMS | Normal Mouse Serum |
| NMSL | Nano Micro Systems Laboratory |
| NMSL | National Measurement Standards Laboratory |
| NMSL | Networking and Mobile Systems Laboratory |
| NMSL | New Mexico Scientific Laboratories |
| NNL | NanoEngineering and NanoDevice Laboratory |
| NNL | National Nuclear Laboratory |
| NNL | Naval Nuclear Laboratory |
| NNL | Neuroimaging and Neurorehabilitation Laboratory |
| NNRTI | non-nucleoside reverse transcriptase inhibitor |
| NOD | Non-Obese Diabetic Mice |
| NOLG | Nitric Oxide LunG |
| NOMD | Neural Oxidative Metabolism and Death Study |
| NOVEL | Narayana Optic Vision Evaluation Laboratory |
| NPC | National Prescriptions Collaborative |
| NPL | neutrophil polymorphonuclear leucocyte |
| NPL | Nonbeverage Products Laboratory |
| NPOL | Naval Physical and Oceanographic Laboratory |
| NPPTL | National Personal Protective Technology Laboratory |
| NPT | near-patient testing |