| Acronym | Meaning |
| BKCM | Burkhardt-Konya-Coulson-March (for Electron Momentum Densities) |
| SLEEP | Scanning Low Energy Electron Probe |
| CCIX | Continuous Countercurrent Ion Exchange |
| GHF | Generalized Hellmann-Feynman (theorem) |
| MAREMF | MARtian Electrons And Magnetic Field |
| LTTD | Low Temperature Thermal Desorption |
| RCI | Relativistic Configuration Interaction |
| BIF | Boilers And Industrial Furnaces (USEPA Rule) |
| POTDR | Polarization Optical Time Domain Reflectometry |
| HELP | Hydrologic Evaluation Of Landfill Performance Model |