| Acronym | Meaning |
| IRI | International Reference Ionosphere |
| TCJJP | Tech. Committee For Juice And Juice Products |
| AGL | Above Ground Level |
| HLB | Hydrophilic-lipophilic Balance (of Surfactants) |
| PF | Protective Factor |
| MLD | Metachromatic Leukodystrophy |
| EIAES | Electron Induced Auger Electron Spectroscopy |
| ATM | Aerosol Trajectory Model |
| PSSCF | Pseudo SCF |
| GCTE | Global Change And Terrestrial Ecosystems |