| Acronym | Meaning |
| ROM | Regional Oxidant Model |
| CNDO/B | Complete Neglect Of Differential Overlap / Boyd |
| ZERI | Zero Emissions Research Initiative |
| CIS | Commonwealth Of Independent States |
| MLOPEX | Mauna Loa Observatory Photochemistry Experiment |
| TBBM | Tight-binding Bond Model |
| FQHE | Fractional Quantum Hall Effect |
| CAST | Cyclic Activated Sludge Technol. |
| RFM | Relativistic Mean Field |
| LRTBAP | Long-range Trans-boundary Air Pollution |