| Acronym | Meaning |
| SCAUA | Semiclassical Approxn. United Atom |
| MRSPT | Modified Rayleigh-Schroedinger Perturbation Theory |
| ESIX | Electrically Switched Ion Exchange |
| MSA | Mineralogical Society Of America |
| FALS | Familial Amyotrophic Lateral Sclerosis |
| ACAMS | Automatic Continuous Air Monitoring System |
| EBSP | Electron Backscattering Pattern |
| PGF | Pseudo Green Function |
| MNDO | Modified Neglect Of Differential Overlap |
| XRMA | X-ray Microanalysis |