| Acronym | Meaning |
| OER | Oxygen Enhancement Ratio |
| PAFP | Photochemical Aerosol Forming Potential |
| PTC | Phase Transfer Catalysis |
| RFM | Rotating Magnetic Field |
| PHT | Pulmonary Hypertension |
| EIS | Emissions Inventory System (US EPA Air Database) |
| OPCW | Organization For Prohibition Of Chemical Weapons |
| CIS | Chemical Information System |
| QPM | Quasiparticle Phonon Model |
| SEGD | Surfactant-enhanced Gravity Drainage [as Of Subsurface Contaminants] |