| Acronym | Meaning |
| BHP | Bottom-hole Pressure |
| EBRT | Empty-bed Residence Time |
| STAT | Slotted Tube Atom Trap |
| CNWRA | Center For Nuclear Waste Regulatory Analyses |
| PSA | Pressure Swing Adsorption (gaseous Waste Treatment) |
| AFBC | Atmospheric Fluidized Bed Combustion |
| UF | Uncertainty Factor (in Oral RfD) |
| SCLO | Self-consistent Local Orbital |
| EMT | Effective Mass Theory (in Electronic Wave Functions Calcn.) |
| SIR-C | Spaceborne Imaging Radar-C |