| Acronym | Meaning |
| SEMPI | Singly Excited Modified Perturbation Theory |
| STOCSY | Statistical Total Correlation Spectroscopy |
| SCE | Sister Chromatid Exchange |
| SPB | Strong-potential Born (approxn. For At. Collision Calcns.) |
| ECF | Elemental Chlorine Free [as In Nonchlorine Bleaching] |
| CCPA | Constant Centrifugal Potential Approximation |
| HMM | Half Molecule Model (for Electron Scattering By Molecules) |
| EXPOLIS | Air Pollution Exposure Distribution Within Adult Urban Populations In Europe |
| MODR | Microwave Optical Double Resonance |
| LEERM | Low Energy Electron Reflection Microscopy |