| Acronym | Meaning |
| UFL | Upper Flammable Limit |
| IIRF | Intergalactic IR Radiation Field |
| GCL | Geosynthetic Clay Liner |
| EKC | Electrokinetic Chromatography |
| ETF | Extended Thomas-Fermi (model) |
| SVE | Selected Valence Electron Model |
| TSD | Thermally Stimulated Discharge |
| DRLFP | Diffuse Reflectance Laser Flash Photolysis |
| ATIR | Attenuated Total Reflectance Infrared |
| SPRKKR | Spin-polarized Relativistic Korringa-Kohn-Rostoker |