| Acronym | Meaning |
| BCCD | Betaine Calcium Chloride Dihydrate |
| SMSO | Spinor Molecular Symmetry Orbital |
| SEAREX | Sea/Air Exchange Program |
| MBS | Minimum Basis Set Wave Function |
| PDR | Photon-dominated Region |
| FDMS | Field-desorption Mass Spectrometry |
| RUDAD | RUmen-Derived Anaerobic Digester |
| HWRTF | Hazardous Waste Restrictions Task Force |
| SFS | Sum-frequency Spectroscopy |
| CD | Centrifugal Decoupling Approximation (for Atom-mol.scattering) |