| Acronym | Meaning |
| RLF | Radially Localized (wave) Function |
| MACHO | Massive Compact Halo Object |
| IMPROVE | Interagency Monitoring For Protected Visual Environments |
| BSO | Benzene Soluble Organics |
| HBAR | High-overtone Bulk Acoustic Resonator |
| LEMAO | Least Energy Minimal Atomic Orbital |
| BTU | British Thermal Unit |
| CAEDYM | Computational Aquatic Ecosystems Dynamic Model |
| ACEMS | Angular Conversion Electron Moessbauer Spectroscopy |
| HOCO | Highest Occupied Crystal Orbital |