| Acronym | Meaning |
| DWPI | Derwent World Patents Index |
| GW | One-particle Green Function(g)-screened Coulomb Interaction(w) |
| NEET | Nuclear Excitation In Electronic Transition |
| FEG | Field Emission Gun |
| ECISDT | Size-extensive CI With Single And Double And Triple Excitations |
| EUSIDIC | European Society For Information Dissemination In Chemistry |
| SWAN | Solar Wind Anisotropies |
| CA | Cellulose Acetate |
| CEI | Committee On Environmental Improvement |
| OWOW | Office Of Wetlands |