| Acronym | Meaning |
| POG | Post-orogenic Granitoids |
| ESMR | Electrically Scanning Microwave Radiometer |
| SGFM | Surface Green Function Matching (method In Calcn. Of Electronic And Phonon Properties Of Crystal Surfaces And Interfaces) |
| MRCEPA | Multireference Coupled-electron-pair Approxn. |
| GSA | General Services Administration |
| HCPT | Hard-core Perturbation Theory |
| CAAA | Clean Air Act Amendments (of 1990) |
| PRB | Permeable Reactive Barrier |
| EDW | Exponential Distorted Wave Approximation |
| IFPC | Integrated Flight And Propulsion Control |