| Acronym | Meaning |
| RBA | Refined Born Approximation (for Atom-mol. Collisions) |
| OTEC | Open Tubular Electrochromatography |
| FPA | Focal Plane Array |
| GLAD | Great Lakes Atmospheric Deposition |
| MEBS | Medium Energy Backscattering Spectrometry |
| LMHEMT | Lattice Matched High Electron Mobility Transistor |
| PREVENT | Pacific Northwest Regional Visibility Expt. Using Natural Tracers |
| ELO | Edge Localized Orbital |
| RTPCR | Reverse Transcriptase Polymerase Chain Reaction |
| TLS | Two-level System (with Tunneling Transitions Between Wells Of Double-well Potential) |