| Acronym | Meaning |
| BCA | Binary-collision Approximation |
| SRBC | Sheep Red Blood Cell |
| TWTDS | Treatment Works Treating Domestic Sewage |
| RMPM | Renormalized Multicenter Potential Model (for Scattering) |
| CCG | Constant Crystal Growth (model) |
| CPFD | Coupled-pair Functional With Double Excitation |
| WQR | Waste Form Qualification Report |
| CHARM | Coupled Hydrosphere-Atmosphere Research Model |
| MMDR | Microwave-microwave Double Resonance |
| SPM | Scanning Proton Microprobe |