| Acronym | Meaning |
| HID | High Interstitial Defect |
| CEPA | Correlated Electron Pair Approxn. |
| RLF | Radially Localized (wave) Function |
| CSD | Crystal Size Distribution |
| XRR | X-ray Reflectometry |
| AURA | Association Of Universities For Research In Astronomy |
| CSCF | Complex Self-consistent Field |
| RCI | Relativistic Configuration Interaction |
| CCRSP | California Cooperative Remote Sensing Project |
| MSIS | Mass Spectrometer And Incoherent Scatter |