- CT angiography
- CT dose index
- CT scan
- CT1
- CT2
- CTA
- CTC
- CTCF
- CTCL
- CTD
- CTGF
- CTL
- CTLA-4
- CTOL
- CTQ tree
- CTR
- CUSUM
- CVD
- CVI
- CVS
- CVSDM
- CVSS
- CVT
- CWD
- CXCL1
- CXCL10
- CXCL12
- CXCR4
- CXCR4 antagonists
- CYP1A2
- CYP3A
- CZT
- CZTS
- Cab over
- Cabin
- Cable
- Cable bacteria
- Cable car
- Cable harness
- Cable tray
- Cables
- Cabotage
- Cache
- Cache coherence
- Cache coherency
- Cache hierarchy
- Cache invalidation
- Cache poisoning
- Cachexia
- Caco-2