| Acronym | Meaning |
| BO | Brueckner Orbital |
| TTL | Transistor-transistor Logic |
| FY | Fiscal Year |
| OSEE | Optically Stimulated Electron Emission |
| ALRSS | Advanced Land Remote Sensing System |
| FAST | Fugitive Assessment Sampling Train |
| ATMS | Assumption-based Truth Maintenance System |
| ADST | Average Daily Soil Temperature |
| MPI | Modified Perturbation Iteration |
| GPT | Glutamic Pyruvic Transaminase |