| Acronym | Meaning |
| MMS | Merged Markush Service |
| PTV | Programmed Temp. Vaporizing |
| CSH | Calcium Silicate Hydrate (cement Component) |
| APFU | Atoms Per Formula Unit |
| CS | Centrifugal Sudden (approximation) |
| FLCD | Ferroelectric Liquid Crystal Display |
| PCDW | Pluvinage Continuum Distorted Wave ( A Wave Function In Calcns. On Atomic And Molecular Collisions) |
| ARAES | Angular Resolved Auger Electron Spectroscopy |
| HACS | Hazard Assessment Computer System |
| CPSSR | Coulomb-repulsion Perturbed Stationary State With Relativistic Effects |