| Acronym | Meaning |
| GRIDS | Geographic Resources Information And Data System |
| SEMPI | Singly Excited Modified Perturbation Theory |
| ICAM-1 | Intercellular Adhesion Molecule-1 |
| UCC | Unitary Coupled-cluster |
| SIFS | Solvent-induced Frequency Shifts |
| DDRP | Direct Delayed Response Program (for Long Term Effects Of Acid Rain) |
| LEDO | Limited Expansion Of Diatomic Overlap |
| VWN | Vosko-Wilk-Nusair (model Potential In Quantum Calcns.) |
| HESP | Human Exposure To Soil Pollutants |
| HSA | Hexanesulfonic Acid |