| Acronym | Meaning |
| QRIOSA | Quantum Reactive Infinite Order Sudden Approxn. |
| VOHAP | Volatile Organic Hazardous Air Pollutant |
| CPBA | Coulomb-projected Born Approximation |
| CSM | Continuum Solvation Model |
| FRDM | Finite-Range Droplet Model |
| STECS | Solar Thermal Electric Conversion Systems |
| RITE | Research Institute Of Innovative Technology For The Earth (Japan) |
| ICD | International Classification Of Diseases |
| ODP | Ocean Drilling Program |
| EMI | Enriched Mantle Component 1 (of S. R. Hart |