| Acronym | Meaning |
| GEM | Genetically Engineered Microorganism |
| GAR | Grain Aspect Ratio |
| LTP | Long-term Potentiation |
| GLWQB | Great Lakes Water Quality Board |
| ESD | Emission Standards Division |
| CSI | Chemical Shift Imaging (NMR) |
| UFF | Universal Force Field |
| ACCAD | Advisory Committee On Climate Applications And Data |
| SCADS | Superfund Chemical Analysis Data System (see CARD) |
| CSFV | Classical Swine Fever Virus |