| Acronym | Meaning |
| WQS | Water Quality Standard |
| COMAH | Control Of Major Accident Hazards |
| BO | Born Oppenheimer |
| PLDMR | Photoluminescence Detected Magnetic Resonance |
| COP | Crystal Originated Particle |
| LEPC | Local Emergency Planning Committee |
| ASIDIC | Association Of Information And Dissemination Centers |
| PIMC | Path-integral Monte-Carlo |
| STF | Slater-type Function |
| IRMPA | Infrared Multiphoton Absorption |