| Acronym | Meaning |
| SOEH | Scaled One-electron Hamiltonian (in SCF Calcns. On Mols.) |
| SCF | Supercritical Fluid |
| UTMS | Universal Mobile Telecommunications System |
| HGCU | Hot-gas-cleanup Unit |
| SS-CCSD | State Selective-CCSD |
| CPI | Chemical Process Industry |
| AOCS | American Oil Chemists' Society |
| SRGO | Straight Run Gas Oils |
| BEWS | Biological Early Warning Systems |
| 3P | Pollution Prevention Pays |