| Acronym | Meaning |
| GPPS | General Purpose Polystyrene |
| UAQI | Uniform Air Quality Index |
| BZ | 3-quinuclidinyl Benzilate (chemical Warfare Agent) |
| ARAC | Acid Rain Advisory Committee |
| E-2PH-TDA | Extended Two-particle-hole Tamm-Dancoff Approxn. (green-function Method For Ionization-energy Calcns.) |
| DDF | Depth Distribution Function |
| ETEC | Environmental Technology & Education Center |
| FAST | Fast Atom Sample Tester |
| GOSAT | Greenhouse Gas Observing Satellite |
| BARC | Bottom Antireflective Coating |