| Acronym | Meaning |
| SNO | Spin Natural Orbital |
| UMTRCA | Uranium Mill Tailings Radiation Control Act |
| PHS | Public Health Service |
| ISI | Information Systems Inventory |
| FIT | Field Investigation Team (US EPA) |
| TSW | Torsional Spin Wave (type Of Hartree-Fock Wave Function) |
| REM | Reflection Electron Microscopy |
| HMRCI | Hazardous Materials Control Research Institute |
| LCEC | Liquid Chromatography With Electrochemical Detection |
| DCXD | Double Crystal X-ray Diffraction |