| Acronym | Meaning |
| MIKE | Mass-analyzed Ion Kinetic Energy (spectrometry) |
| MPC | Maximum Permissible Concentration |
| OSRHF | Open-shell Restricted-Hartree-Fock |
| LIMA | Laser-induced Ion-mass Analyzer |
| DNO | Delocalized Natural Orbital |
| HHAP | Heavy Hydroaroms. From Petroleum |
| SNF | Spent Nuclear Fuel |
| CIPSO | Configuration Interaction (with) Perturbation (including) Spin-orbit Coupling |
| LEELS | Low Energy Electron Loss Spectroscopy |
| QVE | Quasivibrational Energy (formalism In Multiphoton Dissocn.) |