| Acronym | Meaning |
| MOE | Margin Of Exposure |
| IEL | Intraepithelial Lymphocyte |
| DFAA | Dissolved Free Amino Acids |
| PIAS | Photon-counting Image Acquisition System |
| SHEED | Scanning High-energy Electron Diffraction |
| SEGD | Surfactant-enhanced Gravity Drainage [as Of Subsurface Contaminants] |
| RB | Renormalized Band (method In Electronic-structure Calcns.) |
| CAPS | Computer-assisted Problem Solving |
| EGU | European Geosciences Union |
| EID | Environmental Improvement Division |