| Acronym | Meaning |
| GFR | Glomerular Filtration Rate |
| GA | Glauber Approximation (in Electron-atom Scattering) |
| ODP | Ozone Depletion Potential |
| CT | Disinfectant Concn. Times The Contact Time |
| TESS | Triboelectrostatic Separation |
| NSR | Normalized Stoichiometric Ratio |
| AGWSE | Association Of Ground Water Scientists And Engineers |
| CSGT | Continuous Set Of Gauge Transformations |
| CVA | Characteristic Vector Analysis |
| CPCCSD | Coupled-perturbed Coupled-cluster (with) Single (and) Double Excitation |