| Acronym | Meaning |
| CJD | Creutzfeldt-Jakob Disease |
| APS | Active Pixel Sensor |
| MEAN | Multipole-extracted Adiabatic-nuclei (for Electron-molecule Collisions) |
| BGS | Below Ground Surface |
| SHT | Surface Hopping Trajectory (model For Mol. Scattering) |
| EFIG | Emission Factor Inventory Grouppar |
| AFBS | Anaerobic Fluidized Bed Systems |
| HSF | Hiller-Sucher-Feinberg (equation For Calcn. Of Spin Densities And Charge Densities In Mols.) |
| PBM | Proton Beam Micromachining |
| RTDF | Remediation Technologies Development Forum |