| Acronym | Meaning |
| TST-CEQ | Transition State Theory-collinear Exact Quantum (method For Reactive Collisions) |
| EFIG | Emission Factor Inventory Grouppar |
| PRIME | Plume Rise Model Enhancements |
| EUVL | Extreme Ultraviolet Lithography |
| PGAA | Prompt Gamma-ray Activation Analysis |
| SBS | Society For Biomolecular Screening |
| HTML | Hypertext Markup Language |
| PAB | Pollutant Assessment Branch (US EPA) |
| PIO | Paired Interaction Orbital |
| TRAP | Tartrate-resistant Acid Phosphatase |