| Acronym | Meaning |
| QC | Quality Control |
| TIPS | Transferable Intermol. Potential Functions |
| IUCN | International Union For Conservation Of Nature And Natural Resources |
| ETSAP | Energy Technology Systems Analysis Program |
| QPCR | Quantitative Polymerase Chain Reaction |
| SRS | Surface Reflectance Spectroscopy |
| AMWA | American Metropolitan Water Association |
| DOTS | Digital-optical Technology System |
| LEL | Lower Explosion Limit |
| GA | Glauber Approximation (in Electron-atom Scattering) |