| Acronym | Meaning |
| OSRSCF | Open-shell Restricted SCF |
| PFRP | Process To Further Reduce Pathogens |
| AHG | Antihemophilic Globulin |
| AWRA | American Water Resources Association |
| KISS | KPNO International Spectroscopic Survey |
| DUT | Device Under Test |
| RSCA | Relativistic Semiclassical Approximation (for At. Scattering) |
| HYTEC | Hydrogen Thermoelectrochemical Converter (regenerative Fuel Cell) |
| MTBF | Mean Time Between Failure |
| OSW | US Office Of Saline Water |