| Acronym | Meaning |
| LOGS | Laser Optogalvanic Spectrometry |
| NPV | Net Present Value {economics} |
| TWTDS | Treatment Works Treating Domestic Sewage |
| MR-CEPM | Multireference-coupled Electron Pair Method |
| AEC | Atomic Energy Commission |
| HDP | High-density Plasma |
| SESR | Solvent Extraction And Soil Remediation |
| EBCT | Empty Bed Contact Time |
| SFIP | Sector Facility Indexing Project |
| EXGF(1) | Extended Group Function(1) (model Wave Function Accounting For Electron Correlation) |