| Acronym | Meaning |
| RAS | Routine Analytical Services |
| RCSF | Reference Configuration-state Function |
| MIAM | Modified Independent-atom Model (for Electron-mol. Scattering) |
| CMT | Computed Microtomography |
| VRDDO | Variable Retention Of Diatomic Differential Overlap |
| ACTS | Advisory Committee On Toxic Substances |
| AARC | Alliance For Acid Rain Control |
| BAAQMD | Bay Area Air Quality Management District |
| CIPW | Cross, Iddings, Pirrson, And Washington (for Geology Terminology) |
| ASCE | American Society Of Civil Engineers |