| Acronym | Meaning |
| COSCAT | Coherent Scatter System |
| BEFS | Berkeley Extreme And Far-UV Spectrometer |
| PWR | Pressurized Water Reactor |
| AOC | Areas Of Concern |
| SRS | Symmetrized Rayleigh-Schroedinger (perturbation Theory) |
| BCPC | British Crop Protection Council |
| ITER | International Toxicity Estimates For Risk |
| NLMO | Nonorthogonal Localized Molecular Orbital |
| AAMOM | An Approximate Molecular Orbital Method |
| CEY | Conversion Electron Yield |