| Acronym | Meaning |
| AI | Artificial Intelligence |
| MEHT | Modified Extended Hueckel Theory |
| TRCF | Transcription-repair Coupling Factor |
| SAF | Symmetry Adapted Function (in CI Calcns.) |
| SGGA | Symmetric Group Graphical Approach (in CI Calcns.) |
| SOLAS | Surface Ocean-lower Atmosphere Study |
| LPUMP | L-fold (spin) Projected Unrestricted Moeller-Plesset |
| SWR | Standing Wave Ratio |
| HMQC | Heteronuclear Multiple-quantum Coherence |
| AP | Appearance Potential |