| Acronym | Meaning |
| NACEPT | National Advisory Council For Environmental Policy And Technology |
| PVO | Pseudovalence Orbital |
| NDF | Neutral Detergent Fiber |
| GEOS | General Earthquake Observation System |
| TLEED | Tensor Low-energy Electron Diffraction |
| PRA | Probabilistic Risk Assessment |
| CVMO | Cluster Valence Molecular Orbital |
| UAPS | Utility Acid Precipitation Study |
| CXAES | Continuous X-ray-induced Auger Electron Spectroscopy |
| PIMBE | Plasma-induced Molecular-beam Epitaxy |