| Acronym | Meaning |
| GRACE | Gravity Recovery And Climate Experiment |
| PSNS | Pretreatment Standards For New Sources |
| COPM | Carter Ozone Per Mile |
| LTER | Long Term Ecological Research |
| WINDII | Wind Imaging Interferometer |
| USACE | US Army Corp Of Engineers |
| IISI | International Iron And Steel Institute |
| VESCF | Variable Electronegativity Self-consistent Field |
| ALE | Atmospheric Lifetime Experiment |
| RVB | Resonating Valence Bond (theory Of High-tc Superconductors) |