| Acronym | Meaning |
| WET | Waste Extraction Test |
| WSD | Wear Scar Diameter |
| DPA | Differential Pulse Amperometry |
| SRC | Selective Reduction Catalysts (for Denitration) |
| PHC | Photonic Crystal |
| ENIS | Emissive Neutron Imaging And Spectroscopy |
| BRC | Below Regulatory Concern |
| CET | Collisional Energy Transfer |
| LSDX | Local-spin-density (with Exact) Exchange |
| CAWAI | Commission On Atomic Weights And Isotope Abundances |