| Acronym | Meaning |
| CAL | Computer Aided Learning |
| AEDC | Arnold Engineering Development Center |
| HIMU | High U/Pb Mantle (component) |
| UASBR | Upflow Anaerobic Sludge Blanket Reactor |
| PBM | Probability-based Matching |
| INA | Ion Neutral Analysis |
| CCAA | Canadian Clean Air Act |
| HRXRD | High Resolution X-ray Diffraction |
| BOREAS | Boreal Ecosystem - Atmosphere Exchange Study |
| CSF | Colony-stimulating Factor |