| Acronym | Meaning |
| OCE | One-center Expansion (SCF MO Method) |
| ADAS | Acid Deposition Assessment Staff |
| SLBO | Strictly Localized Bond Orbital |
| GPEF | Generalized Potential Energy Function |
| APS | Appearance Potential Spectroscopy |
| MSBR | Molten Salt Breeder Reactor |
| ALSC | Adirondack Lakes Survey Corporation |
| DWS | Drinking Water Standard |
| SPIES | Surface Penning Ionization Electron Spectroscopy |
| SCMPS | Spin-corrected Moeller-Plesset Nth-order |