| Acronym | Meaning |
| ECP | Exchange Coupled Pair |
| TAD | Thermophilic Aerobic Digestion (of Sewage Sludge) |
| OVB | Orthogonalized Valence Bond Method |
| BLCAO | Bilinear Combination Of Atomic Orbitals |
| CEQA | California Environmental Quality Act |
| TDS | Total Dissolved Solids |
| MEBES | Micro-electron Beam Evaporation Source |
| ARAT | Avion De Recherche Atmospherique Et Teledetection |
| CHEF | Chelation Enhanced Fluorescence |
| IGAIM | Individual Gages (for) Atoms In Molecules |