| Acronym | Meaning |
| EPS | Emission Preprocessor System |
| RBE | Relative Biological Effectiveness |
| PCP | Photoelectric Charging Of Particles |
| EPCE | Enhanced Pre-coat Engineering |
| SLMO | Strictly Localized Molecular Orbital |
| GDC | Glow Discharge Cleaning |
| ASD | Active Subslab Soil Depressurization (for Radon Minimization In Buildings) |
| DQ | Drawing Quality |
| ECEC | Effective Cation Exchange Capacity |
| SAI | Simplified Ab Initio Method |