| Acronym | Meaning |
| SIM | Selected Ion Monitoring |
| ADIFAB | Acrylodan Labeled Intestinal Fatty Acid Binding Protein |
| DO | Diatomic Orbital |
| TSDIA | Two-scale Direct-interaction Approximation [in Flow Energy Modeling] |
| TNFR | Tumor Necrosis Factor Receptor |
| CSR | Class Switch Recombination |
| SRC-1 | Steroid Receptor Coactivator-1 |
| CINO | Configuration Interaction Natural Orbital |
| SEU | Single Event Upset (in Spacecraft Power Systems) |
| ECNICI | Electron Capture Negative Ion Chemical Ionization |