| Acronym | Meaning |
| GEO | Geostationary Earth Orbit |
| GLAS | Geoscience Laser Altimeter System |
| DTGF | Double-time Green Function |
| CAS-SI | Complete Active Space-state Interaction |
| VHH | Volatile Halogenated Hydrocarbons |
| CAPS | Computer-assisted Problem Solving |
| XRPD | X-ray Powder Diffraction |
| BIF | Banded Iron-formation |
| AQMA | Air Quality Maintenance Area |
| TCLE | Thermal Coefficient Of Linear Expansion |