| Acronym | Meaning |
| LCI-CNDO | Limited Configuration Interaction-complete Neglect Of Differential Overlap |
| EFTEM | Energy-filtering Transmission Electron Microscopy |
| SCAP | Self-consistent Average Phonon (theory) |
| IEE | Institution Of Electrical Engineers |
| GASP | Gamma Astronomy At The South Pole |
| NAWQA | National Water Quality Assessment (US Geological Survey) |
| IC | Integrated Circuit |
| TEWI | Total Equivalent Warming Impact |
| ESDB | Endangered Species Database/Reach Scanlink |
| MAA | Melanoma-associated Antigen |