| Acronym | Meaning |
| LDF | Laser Doppler Flowmetry |
| TSDF | Treatment, Storage, And Disposal Facility |
| UIHRS | Upflow Inclined High-rate Settlers |
| SDA | Structure-directing Agent |
| SCRIBE | Stratospheric Cryogenic Interferometer Balloon Experiment |
| NGST | Next Generation Space Telescope |
| WWSCOT | Whisker Wall Support Coated Open Tubular Column |
| IMAPS | Interstellar Medium Absorption Profile Spectrograph |
| REPA | Resource And Environmental Profile Analysis |
| ERD | Electron Recoil Detection |