| Acronym | Meaning |
| TRXF | Total Reflection X-ray Fluorescence |
| FRM | Fiber-reinforced Metals |
| GAIM | Global Analysis Interpretation And Modeling |
| MSM | Multiple-scattering Model |
| PACT | Powdered Activated Carbon Treatment |
| CASS | Computer Assisted Stratification And Sampling |
| ERIIS | Environmental Risk Information And Imaging Services |
| GA | Glauber Approximation (in Electron-atom Scattering) |
| HIV | Human Immunodeficiency Virus |
| RSR | Rapid Solidification Rate |