- CMOS sensor
- CMP
- CMS
- CMTS
- CMUT
- CNC
- CNF
- CNG
- CNN
- CNV
- COBOL
- COD
- COF
- COM
- COMP
- COMSOL Multiphysics
- CONWIP
- COP
- COPASI
- COPD
- CORBA
- CORDIC
- COVID-19
- COVID-19 datasets
- COVID-19 symptoms
- COVID-19 testing
- COVID-19 treatments
- COVID-19 vaccine
- COX-1
- COX-2
- COX-2 inhibitors
- CPAP
- CPDLC
- CPE
- CPG
- CPL
- CPLD
- CPLDs
- CPM
- CPOE
- CPR
- CPR-1000
- CPT
- CPU
- CPU time
- CPVC
- CRC
- CRC32
- CRE
- CREB
- 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
- Cacodylic acid
- Cadence
- Cadherin
- Cadherin-1
- Cadinene
- Cadmium
- Cadmium chloride
- Cadmium fluoride
- Cadmium hydroxide
- Cadmium poisoning
- Cadmium selenide
- Cadmium sulfide
- Cadmium telluride
- Cadmium yellow
- Caenorhabditis elegans
- Caesar cipher
- Caesium
- Caesium bromide
- Caesium chloride
- Caesium-137
- Cafestol
- Caffeic acid
- Caffeic acid phenethyl ester
- Caffeine
- CagA
- Cage effect