| Acronym | Meaning |
| MC-DWBA | Multichannel Distorted Wave Born Approxn. |
| MEAN | Multipole-extracted Adiabatic-nuclei (for Electron-molecule Collisions) |
| SWICS | Solar Wind Ion Composition Spectrometer |
| GCOS | Global Climate Observing System (WMO |
| FSCE | Free-solution Capillary Electrophoresis |
| BPWTT | Best Practical Wastewater Treatment Technology |
| STI | Shallow Trench Isolation |
| CLL | Chronic Lymphocytic Leukemia |
| QWASI | Quantitative Water Air Sediment Interaction |
| POX | Purgeable Organic Halogen(s) |