| Acronym | Meaning |
| PVB-CSF | Projected Valence Bond-configuration State Function |
| EARISS | Energy And Angle Resolved Ion Scattering Spectroscopy |
| SCEM | Semiclassical Self-consistent Eikonal Method |
| ARCS | Alternative Remedial Contracting Strategy (US EPA) |
| NIRMS | Noble Gas-ion Reflection Mass Spectrometry |
| QTOF | Quadrupole Time-of-flight |
| SDRAM | Synchronous Dynamic Random Access Memory |
| RAS | Reflection-absorption Spectroscopy |
| APMI | American Powder Metallurgy Institute |
| LLRD | Long-lived Radioactive Dust |