| Acronym | Meaning |
| TNOA | Target Natural Orbital Approximation |
| INS | Ion Neutralization Spectroscopy |
| AGU | Anhydroglucose Units |
| STA | Simultaneous Thermal Analysis |
| SNS | Spallation Neutron Source |
| RPWBA | Relativistic Plane-wave Born Approximation |
| FTICR | Fourier Transform Ion Cyclotron Resonance |
| PHIP | Para-Hydrogen Induced Polarization |
| IDI | Ion Dipole Induced (potential Term In Potential Energy Surfaces) See Also LEPS-IDI |
| QMO | Quaternionic Molecular Orbital Method |