| Acronym | Meaning |
| FCC | Flat Collect Circuit (in Solar Cell Array For Spacecraft) |
| SIA | Self-interstitial Atom |
| CFFE | Cumulative Fissile Fuel Enrichment |
| CASV-MC-SCF | Complete Active Space Valence Space-multiconfiguration-SCF |
| CISDT | CI With Single And Double And Triple Excitations |
| GSA | Generalized Sudden Approximation |
| VETESS | Vehicle Transient Emissions Simulation Software |
| PCOP | Positron Correlation Polarization (potential) |
| MDA | Metal Deactivator |
| KSS | Kearns-Sayre Syndrome |