| Acronym | Meaning |
| DSDV | Dirac-Slater Discrete Variational |
| CBS-QCI | Complete Basis Set-quadratic Configuration Interaction |
| SCSRC | Solids Contact Slurry Recirculating Clarifier(s) |
| HADES | High Activity Disposal Exptl. Site [for Radioactive Waste] |
| RADM | Regional Acid Deposition Model |
| YAG | Yttrium Aluminum Garnet |
| TALMS | Tunable Atomic Line Molecular Spectroscopy |
| MNDOD | Modified Neglect Of Diatomic Overlap With D At. Orbitals |
| MRA | Multiple Regression Analysis |
| BCR | Bureau Communitaire De Reference (of The CEE = Commission Of European Communities |