| Acronym | Meaning |
| PI | Pollution Index |
| TBW | Total Body Water |
| OASLM | Optically Addressed Spatial Light Modulator |
| UHF-AA | Unrestricted Hartree-Fock (with Spin) Annihilation |
| OMS | Octahedral Molecular Sieve |
| LCMO | Linear Combination Of Molecular Orbitals |
| HF MO LCAO | Hartree-Fock MO LCAO |
| ICE | International Common Elements |
| CMSA | Consolidated Metropolitan Statistical Area |
| N-BOD | Nitrogenous Biochemical Oxygen Demand |