| Abbreviation | Definition |
|---|---|
| NPY | Neuropeptide Y |
| NRC | National Research Council |
| NRGA | Non Revisiting Genetic Algorithm |
| NRGA | Non-revisiting Genetic Algorithm |
| NRR | Nuclear Receptor Resource |
| NRR1 | Nuclear Receptor Resource 1 |
| NRR2 | Nuclear Receptor Resource 2 |
| NRRE | Nuclear Receptor Response Element |
| NRRE-1 | Nuclear Receptor Response Element 1 |
| NRSA | National Research Service Award |
| NRSF | Neuronal Restricted Silencing Factor |
| NRTI | Nucleoside Reverse Transcriptase Inhibitor |
| NSC | Neural Stem Cells |
| NSCC | National Stem Cell Centre |
| NSF | National Science Foundation |
| NSF | NEM (N-EthylMaleimide) Sensitive Factor |
| NSGA | Nondominated Sorting Genetic Algorithm |
| NSGC | National Society of Genetic Counselors |
| NST | NeuroStructural Technique |
| NT | NucleoTide |