| Acronym | Meaning |
| PRA | Probabilistic Risk Assessment |
| WQA | Water Quality Association |
| VEH | Valence Effective Hamiltonian Method (for Electronic Structure) |
| SALCCSD | Spin-adapted Linear Coupled-cluster (with) Single And Double Excitations) |
| BTDA | 3,3',4,4'-benzophenonetetracarboxylic Dianhydride |
| BCT | Best Conventional Technology |
| AAEE | American Academy Of Environmental Engineers |
| SRC-1 | Steroid Receptor Coactivator-1 |
| AOMA | American Occupational Medical Association |
| STLS | Singwi-Tosi-Land-Sjolander (generalized Random-phase Approxn. For Effective Pair Potentials Of Liq. Metals) |