| Acronym | Meaning |
| GDE | General Dynamic Equation |
| SPHEM | Superfund Public Health Evaluation Manual |
| COBE | Cosmic Background Explorer Satellite (NASA) |
| SDI | Silt Density Index |
| HWR | Heavy Water Reactor |
| SOF | Soluble Organic Fraction |
| LIDT | Laser-induced Damage Threshold |
| ASIS | American Society For Information Science |
| FP-MC | Finite Perturbation-multiconfigurational Method |
| RITS | Radiatively Important Trace Species |