| Acronym | Meaning |
| NIRS | Neutral Impact Radiation Spectroscopy |
| RMCSTEP | Repartitioned Multiconfigurational Spin-tensor Electron Propagator |
| MC CMO | Multiconfigurational Complex Molecular Orbita |
| URIF | Uniformly Retreating Ice Front [in Model Of Dehydration] |
| SARS | Scattering And Recoiling Spectrometry |
| GFA | Glass-forming Ability |
| SEHF | Spin-extended Hartree-Fock |
| R2PI | Resonant Two-photon Ionization |
| LBO | Localized Born-Oppenheimer |
| COSPAR | Committee On Space Research |