| Acronym | Meaning |
| IT | Integral Transform |
| SLI | Starter Light Ignition (lead Batteries) |
| PMF | Positive Matrix Factorization |
| IUCLID | International Uniform ChemicaL Information Database |
| STIG | Steam-injected Gas Turbines |
| OSRD | Office Of Scientific Research And Development |
| NDB | Nucleic Acid Database |
| AL:PE | Acidification Of Mountain Lakes: Paleolimnol. And Ecol. |
| FEGE | Free Electron Gas Exchange Approximation |
| AHU | Air Handling Unit |