| Acronym | Meaning |
| FVEH | Fragment Valence Effective Hamiltonian (in Electronic-structure Calcns. On Mol. Fragments) |
| GPSC | Gas Proportional Scintillation Counter |
| EET | Electronic Energy Transfer |
| IATA | International Air Transport Association (Geneva |
| DECENT | Distribution Of Exact Classical Energy Transfer Approximation |
| INDO/2-HP | INDO/2-hole Potential |
| CFS | Coherent Forward Scattering |
| GODIVA | GOME Data Interpretation |
| SAI | Spline-fitted Ab Initio (potential Energy Surface) |
| TIP | Temperature-independent Paramagnetism |