| Acronym | Meaning |
| CAICISS | Coaxial Impact Collision Ion Scattering Spectroscopy |
| AQPS | Air Quality Prediction System |
| RREL | Risk Reduction Engineering Laboratory |
| SNUR | Significant New Use Rule |
| ATM | Asynchronous Transfer Mode |
| ICRU | International Commission On Radiation Units And Measurements |
| MECI | Monoexcited Configuration Interaction |
| CPT | Critical Pitting Temperature |
| BIOME | Biological Imaging And Observation/Mission To Earth |
| LVDT | Linear Variable Differential Transformer |