| Acronym | Meaning |
![](file.png) | NODS | NASA Ocean Data System |
![](file.png) | NOE | Nuclear Overhauser Effect (NMR) |
![](file.png) | NOE | Nuclear Overhauser Enhancement |
![](file.png) | NOEC | No Observed Effect Concentration |
![](file.png) | NOEL | No Observable Effect Level (in Animal Tests) |
![](file.png) | NOES | National Occupational Exposures Survey |
![](file.png) | NOESY | Nuclear Overhauser Effect Spectrometry |
![](file.png) | NOET | NASA Operational Environment Team |
![](file.png) | NOGF | Nonorthogonal Group Function Approximation |
![](file.png) | NOHS | National Occupational Hazard Survey |
![](file.png) | NOHSC | National Occupational Health And Safety Commission (Australia) |
![](file.png) | NOI | Notice Of Intent |
![](file.png) | NOLMOS | Nonorthogonal (strictly) Local Molecular Orbitals |
![](file.png) | NOM | Natural Organic Matter |
![](file.png) | NOMAD | Neutrino Oscillation MAgnetic Detector |
![](file.png) | NOMS | National Organics Monitoring Survey (US EPA 1976-1977) |
![](file.png) | NOONS | Natural Orbitals Occupation Numbers |
![](file.png) | NOPES | Nonoccupational Pesticide Exposure Study |
![](file.png) | NORA | National Occupational Research Agenda |
![](file.png) | NORM | Naturally Occurring Radioactive Material(s) |
![](file.png) | NORS | National Organics Reconnaissance Survey (US EPA 1974-1975) |
![](file.png) | NOS | Nitric Oxide Synthase |
![](file.png) | NOS | Not Otherwise Specified |
![](file.png) | NOSC | Naval Ocean Systems Center |
![](file.png) | NOV | Notice Of Violation |
![](file.png) | NOW | Nonhazardous Oil Field Waste |
![](file.png) | NOX | Nitrogen Oxides |
![](file.png) | NPA | Natural Population Analysis |
![](file.png) | NPA | Natural Population Analysis (for Electron Configuration Of Mols.) |
![](file.png) | NPAH | Nitro-polycyclic Aromatic Hydrocarbon |
![](file.png) | NPAPS | Non-phase Alternation Pulse Sequence |
![](file.png) | NPAR | Nonbinding Preliminary Allocation Of Responsibility |
![](file.png) | NPC | Niemann-Pick Type C Disease |
![](file.png) | NPC | Nasopharyngeal Carcinoma |
![](file.png) | NPC | Nonparenchymal Cell |
![](file.png) | NPC | Nuclear Pore Complex |
![](file.png) | NPCA | National Paint And Coatings Association (US) |
![](file.png) | NPCR | Nonlinear Principal Components Regression |
![](file.png) | NPCVD | Normal Pressure Chemical Vapor Deposition |
![](file.png) | NPD | Nitrogen Phosphorus Detector (gas Chromatography) |
![](file.png) | NPD | Normal Photoelectron Diffraction |
![](file.png) | NPDES | National Pollutant Discharge Elimination System |
![](file.png) | NPDOC | Non-purgeable Dissolved Organic Carbon |
![](file.png) | NPDWR | National Primary Drinking Water Regulations |
![](file.png) | NPIRS | National Pesticide Information Retrieval System |
![](file.png) | NPL | National Physical Laboratory |
![](file.png) | NPL | National Priorities List |
![](file.png) | NPL | Nonparametric Linkage |
![](file.png) | NPL | Nuclear-pumped Laser |
![](file.png) | NPM | Nonpolar Material |