| Acronym | Meaning |
| CPVC | Critical Pigment Volume Concentration |
| ISM | Interstellar Medium |
| GIT | Gastrointestinal Tract |
| ASS | Argininosuccinate Synthetase |
| LRTAP | Long-range Transboundary Air Pollution |
| GBT | Generalized Brillouin Theorem |
| GMISS | Gridded Model Information Support System |
| APD | Avalanche Photodiode |
| SQRD | Square Root Darwin Term (correction To T And V Operator) |
| PELMO | Pesticide Leaching Model |