| Acronym | Meaning |
| APSG | Antisymmetrized Product Of Spin Geminals Method |
| EFTEM | Energy-filtering Transmission Electron Microscopy |
| AIAA | American Institute Of Aeronautics And Astronautics |
| EPER | European Pollutant Emission Register |
| SIM | Standards Injection Module |
| NTU | Number Of Transfer Units (in Packed Tower Aeration System) |
| CMA | Chemical Manufacturers Association |
| NESHAPS | National Emission Standards For Hazardous Air Pollutants |
| ODT | Order-disorder Transition |
| EPTOX | Extraction Procedure Toxicity Test |