| Acronym | Meaning |
| ICL | Interface Control Layer |
| VCC-RIOS | Vibrational Close-coupled-rotational Infinite Order Sudden |
| PERALS | Photon-Electron Rejecting Alpha Liquid Scintillation |
| HESI | Health And Environmental Sciences Institute |
| NETAC | National Environmental Technol. Applications Corporation |
| ICAC | Institute Of Clean Air Companies |
| CML | Chronic Myelogenous Leukemia |
| ERMM | Effective R-matrix Model (in Reactive Electron-mol. Scattering) |
| HCN | US Historical Climatology Network |
| CVAFS | Cold Vapor At. Fluorescence Spectrometry |