| Acronym | Meaning |
| RSPE | Rayleigh Schroedinger Perturbation Expansion |
| NACEPT | National Advisory Council For Environmental Policy And Technology |
| LFECA | Low Frequency Eddy Current Array |
| PBO | Polarized Born-Oppenheimer |
| CSPA | Cold Shock Protein A |
| SET | Single Electron Transfer |
| EIMP | Energy Independent Model Pseudopotential |
| EA | Environmental Assessment |
| DOT | Diffuse Optical Tomography |
| POM | Projection-operator Method |