| Acronym | Meaning |
| ASEHF | Approximate Spin-extended Hartree-Fock |
| CCC | Critical Coagulant Concentration |
| AQS | Ambient Quality Standard |
| MIBD | Micro-interferometric Backscatter Detection |
| CPMET | Coupled Pair Many Electron Theory |
| ZSR | Zdanovskii-Stokes-Robinson [model] |
| HSAB | Hard And Soft Acids And Bases |
| RTIL | Room-temperature Ionic Liquid |
| NASQUAN | National Stream Water Quality Accounting Network |
| WAND | Wide Angle Neutron Diffraction |