| Abbreviation | Definition |
|---|---|
| C&E | Cause and Effect |
| C&EA | Cause and Effect Analysis |
| CA | Crash Avoid |
| CAD | Charged Area Development |
| CAEP | China Academy of Engineering Physics |
| CAL | Controlled Axial Lifetime |
| CAL | Kilocalorie (Capital C in abbreviation) |
| CAQP | Centre for Advanced Quantum Physics |
| CARI | Combustion Air Requirement Index |
| CARS | Coherent Anti-stokes Raman Scattering |
| CARS | Coherent Anti-Stokes Raman Spectroscopy |
| CAS | Common Analysis Structure |
| CASP | Center for Advanced Solar Photophysics |
| CASPER | Center for Astrophysics Space Physics and Engineering Research |
| CASS | Center for Astrophysics Space Sciences |
| CAT | computed axial tomography |
| CBA | Center for Backyard Astrophysics |
| CBH | Correlated Barrier Hopping |
| CBO | Coherent Betatron Oscillations |
| CBO | Corrected Born-Oppenheimer |