| Acronym | Meaning |
| ECPSSR | Energy-loss Coulomb-repulsion Perturbed-stationary-state Relativistic Theory |
| CIBO | Council Of Industrial Boiler Owners |
| DCB | Double-cantilever Beam |
| OPTS | Office Of Pesticides And Toxic Substances (USEPA) |
| MACSIMS | Measurement Of Atmospheric Constituents By Selective Ion Mass Spectrometry |
| STEP | Soil Treatment Evaluation Program |
| CBE | Coulomb-Bethe (for Electron-ion Scattering) |
| DBE | Distorted-wave Born Exchange |
| AHA | Anterior Hypothalamic Area |
| FP | Finite Perturbation |