| Acronym | Meaning |
| CBMAPDT | Committee On Biologic Markers Of Air-Pollution Damage In Trees |
| HEMT | High Electron Mobility Transistor |
| RODAC | Regional Ocean Dumping Advisory Committee |
| GPO | Government Printing Office |
| PIN | Pesticide Information Network |
| QET | Quasi-equilibrium Theory |
| SAR | Sodium Absorption Ratio |
| FEGE | Free Electron Gas Exchange Approximation |
| TBU | Tertiary Building Unit |
| PSSCF | Pseudo SCF |