| Acronym | Meaning |
| OVGF | Outer-valence Green Function (for Ionization-energy Calcns.) |
| VBCI | Valence Bond Configuration Interaction |
| ESSP | Earth Systems Science Pathfinder |
| ARISS | Angle Resolved Ion Scattering Spectroscopy |
| GCE | Glassy Carbon Electrode |
| ARMA | Autoregressive-moving Average Stochastic Model |
| AWRA | American Water Resources Association |
| SAROAD | Storage And Retrieval Of Aerometric Data |
| INIS | International Nuclear Information System |
| MF | Muffin Tin (potential Energy Function) |