| Acronym | Meaning |
| FASI | Field-amplified Sample Injection |
| TIW | Time-independent Wave Packet |
| MASS | Magic Angle Sample Spinning |
| SHREWD | Standoff Handheld Real-time Early Warning Detector |
| BCOE | Barrels Of Crude Oil Equivalent |
| IVC | Inferior Vena Cava |
| TMOS | Tetramethyl Orthosilicate |
| MCEP | Multiconfigurational Electron Propagator (in Ionization Potential Calcns.) |
| ISLOCA | Inter-system Loss-of-coolant Accident |
| XGRS | X-ray/gamma-ray Spectrometer |