| Acronym | Meaning |
| ND | Nitrification Denitrification |
| CCSA | Classical Cintrifugal-sudden Approxn. |
| DIET | Desorption Induced By Electronic Transitions |
| EGO | Exhaust Gas Oxygen |
| LMF | Ladle Metallurgical Facility |
| NORS | National Organics Reconnaissance Survey (US EPA 1974-1975) |
| CUTLASS | Co-operative UK Twin-Located Auroral Sounding System |
| PSM | Pflanzenschutzmittel; Pesticides |
| STEM | Scaled Taylor Exponential Model |
| PAIR | Preliminary Assessment Information Rule |