| Abbreviation | Definition |
|---|---|
| NTF | Neutron Therapy Facility |
| NTFL | Newport Thin Film Laboratory |
| NTIB | National Tuberculosis Institute Bangalore |
| NTIMS | Negative Thermal Ionization Mass Spectrometry |
| NTP | National Toxicology Program |
| NTRL | National Tuberculosis Reference Laboratory |
| NTRL | Neuroimaging and Translational Research Laboratory |
| NTRL | Neuroimaging Translational Research Laboratory |
| NTSL | National Tree Seed Laboratory |
| NTTRL | National Tissue Typing and Reference Laboratory |
| NTU | Nitrification Treatment Unit |
| NUA | Naturally Unmediated Actual |
| NUB | Non Usable Body |
| NUK | Nuklearmedizin |
| NuMA | Nuclear protein that associated with the Mitotic Apparatus |
| NV | No Volume |
| NVG | National Viral Group |
| NVG | Nuclear VentriculoGram |
| NVI | Netherlands Vaccine Institute |
| NVL | noninvasive vascular laboratory |