| Acronym | Meaning |
| ACRR | Annular Core Research Reactor |
| FCI | Fuel Coolant Interaction |
| SBSR | Single Bead String Reactor |
| AMTS | Advanced Moisture And Temperature Sounder |
| CELSS | Controlled Ecological Life Support System |
| EMII | Enriched Mantle Component 2 (of S. R. Hart |
| HKF | Helgeson-Kirkham-Flowers (equation Of State) |
| CSIA | Compd.-specific Isotope Anal. |
| CRBP | Cellular Retinol Binding Protein |
| SESMO | Semiempirical Scaled Molecular Orbital |