| Acronym | Meaning |
| CLEVER | Clinical Laboratory For Evaluation And Validation Of Epidemiologic Research |
| BCRU | British Committee On Radiation Units And Measurements |
| RNS | Reactive Nitrogen Species |
| CGTB | Cellular And Genetic Toxicology Branch |
| APMP | Acid Precipitation Mitigation Program |
| GO | Gaussian Overlap (approxn. In Mol. Calcns.) |
| ERRD | Emergency And Remedial Response Division |
| LPG | Liquefied Petroleum Gas |
| ETS | Electron Transport System |
| GID | Grazing Incidence Diffraction |