| Acronym | Meaning |
| CPMV | Cowpea Mosaic Virus |
| SLMO | Symmetry-adapted Localized Molecular Orbital |
| DEM | Digital Elevation Model |
| ARS | Agricultural Research Service (US Dept. Of Agriculture) |
| ISLOCA | Inter-system Loss-of-coolant Accident |
| FIAT | Field Information Agency Technical |
| STB | Semiempirical Tight Binding |
| TDO | Truncated Diatomic Orbital (a MO) |
| MDD | Maximum Daily Dose |
| ICSC | International Chemical Safety Card |