| Acronym | Meaning |
| QCC | Quadrupole Coupling Constant |
| LCVO | Linear Combination Of Valence Orbitals |
| RCSB | Research Collaboratory For Structural Bioinformatics |
| CAE | Constant Analyzer Energy |
| TALIF | Two-photon Absorption Laser Induced Fluorescence |
| LHM | Longuet-Higgins-Murrell Approximation |
| TBBM | Tight-binding Bond Model |
| LVM-ST | Least-squares Variational Method (involving Only) Square-integrable (test Functions) (for Wave Functions In Scattering) |
| HFCVD | Hot Filament Chemical Vapor Deposition |
| BIS | Bremsstrahlung Isochromat Spectroscopy |