| Abbreviation | Definition |
|---|---|
| NICS | Nucleus independent chemical shifts |
| NICS | Nucleus-Independent Chemical Shift |
| NID | Negative Ion Detector |
| NIL | Near Isogenic Line |
| NIMBY | National Industrial Material By-product Yield |
| NiMH | Nickel-Metal Hydride |
| NIT | Near Infrared Transmittance |
| NITI | Nickel Titanium |
| NiZn | Nickel-Zinc |
| NL | No Limit |
| NLC | Nobel Laureate in Chemistry |
| NLDFT | Non-Local Density Functional Theory |
| NLG | Nitrogen And Light Gases |
| NLS | No Large Scale |
| NM | NanoMeter |
| NM | Non-Metal |
| NM | Normal Metal |
| NME | New Molecular Entities |
| NMI | N-Methyl-Imidazole |
| NMOC | Non Methane Organic Compound |