| Acronym | Meaning |
| CVSEH | Correlated Valence Shell Effective Hamiltonian |
| OHMS | Office Of Hazardous Materials Safety |
| SCEHM | Soil Chemical Exchange Of Heavy Metals Model |
| EPA | Extended Pair Approxn. (in Elec. Cond. Calcn.) |
| LDA | Linear Diode Array |
| MMA | Manual Metal Arc Welding |
| ENAC | Energetic Neutral Atom Camera |
| HIRLAM | High Resolution Limited Area Model |
| VCC | Variable Curvature Coordinates (in Calcns. On Mol. Vibrations) |
| EMIS | Environmental Management Information System |