| Acronym | Meaning |
| OW | Office Of Water |
| UKAWRG | United Kingdom Acid Waters Review Group |
| CIOSA | Classical Infinite-order Sudden Approxn. |
| IUGS | International Union Of Geological Sciences |
| WMMA | Waste Materials Management Act |
| DIANE | Direct Information Access Network For Europe |
| CPMCHF | Coupled Perturbed Multiconfiguration Hartree-Fock |
| BIAS | Bismuth-active Substance (in Surfactant Concn. Detn. In Environmental Tests) |
| IEEM | Ion-electron Emission Microscopy |
| SCBSA | Self-consistent Boundary-site Approxn. (for D.-of-states) |