| Acronym | Meaning |
| SETAC | Society Of Environmental Toxicology And Chemistry |
| TPR | Tetratricopeptide Repeat |
| RAA | Rigid-atom Approxn. (in Electronic Structure Calcns.) |
| ASTEX | Atlantic Stratus Transition Experiment |
| DVMO | Directed-valence Molecular Orbital |
| CHF | Coupled Hartree-Fock |
| MCIC | Metals And Ceramics Information Center |
| LIFS | Laser Induced Fluorescence Spectroscopy |
| PGF | Pseudo Green Function |
| DSW | Dirac Scattered-wave (often As SCF-X(alpha)-DSW Method) |