| Acronym | Meaning |
| LRET | Luminescence Resonance Energy Transfer |
| LEF | Large-amplitude Elec. Field Fluctuations |
| CEPA-VAR | Coupled-electron-pair Approxn.-variational |
| UCM | Unresolved Complex Mixt. |
| SC-MEH-MO | Self-consistent-modified Extended Hueckel-MO |
| DOUBTFUL | Double Quantum Transitions For Finding Unresolved Lines |
| VSM | Variable Screening Model (for Quasimols. And MO Correlation Diagrams) |
| LCP | Local Complex Potential (in Electron-atom Scattering) |
| WTP | Willingness To Pay |
| BRAVO | Big Bend Regional Aerosol And Visibility Observational Study |