| Acronym | Meaning |
| MSCE | Modified Semiclassical Exchange (aproxn. In Scattering Calcns.) |
| SBA | Second Born Approximation |
| BRC | Basic Regulatory Control |
| GEMMA | Gas-phase Electrophoretic Mobility Molecular Analysis |
| MLS | Molecular Luminescence Spectroscopy |
| CASPT | Complete Active Space-perturbation Theory |
| ELG | Emission-line Galaxy |
| CCPPA | Coupled-cluster Polarization-propagator Approxn. |
| VPEEM | Valence Band Photoemission Electron Microscopy |
| ITAM | Immunoreceptor Tyrosine-based Activation Motif |