| Acronym | Meaning |
| CSTIM | Channeling Scanning Transmission Ion Microscopy |
| EC | Enzyme Commission |
| FODA | Fiber Optic Doppler Anemometry |
| HREELS | High-resolution Electron Energy-loss Spectroscopy |
| SHM | Screened Hydrogenic Model (for Electronic Structure In Plasmas) |
| FOWL | Fossil Fuel Waste Leaching (computer Program) |
| SAC-CI | Symmetry-adapted Cluster Configuration Interaction (theory For Wave-function Expansion) |
| SRC | Selective Reduction Catalysts (for Denitration) |
| AAHIS | Advanced Airborne Hyperspectral Imaging System |
| IAP | Ion Activity Products |