| Acronym | Meaning |
| SPP | Suspended Particulate Phase |
| MCXD | Magnetic Circular X-ray Dichroism |
| ARP | Adiabatic Rapid Passage |
| AGGG | Advisory Group On Greenhouse Gases |
| MERD | Metal-enhanced Reductive Dehalogenation |
| BEA | Binary Encounter Approximation |
| UARP | Upper Atmospheric Research Program |
| HRBS | High Resolution Rutherford Backscattering |
| CES | Committee On Earth Science (Office Science & Technology Policy) |
| TCEQ | Texas Commission On Environmental Quality |