| Acronym | Meaning |
| EQE | Equivalent Quantum Efficiency |
| BCR | Bubble Column Reactor |
| RTF | Replenished Tapped And Fractionated (magma) |
| LMWH | Low-molecular-weight Heparin |
| FOIA | Freedom Of Information Act |
| RITG | Radiatively Important Trace Gases |
| NKA | (Na2O + K2O)/Al2O3 |
| CNS | Central Nervous System |
| HHS | Health And Human Services Department |
| BSO | Basic Symmetric Operator (in Second-quantization Calculations) |