| Acronym | Meaning |
| WOUDC | World Ozone And UV Data Center |
| FOIA | Freedom Of Information Act |
| ST4CCD | Coupled Cluster (with) Double (substitutions And) Single (and) Triple (substitutions Incorporated Via) Fourth-order (perturbat |
| TTS | T Tauri Star |
| UOT | Universal Oxidn. Test |
| RARE | Retinoic Acid-response Element |
| MGVB | Modified Generalized Valence Bond |
| CBS-FCI | Complete Basis Set-full Configuration Interaction |
| QFEP | Quantum Free Energy Perturbation (calcn. Method) |
| DMA | Differential Mobility Analyzer |