- child-operation
- chip circuit
- chip count
- chip fabricator
- chip kit
- chip maker
- chip manufacturer
- chip resistor
- chip shop
- chip yield
- chips box
- CHKDSK
- choice device
- choke lever
- chord-keying
- chroma key
- chrominance demodulator
- cipher machine
- circle coordinates
- circuit card
- circuit efficiency
- circuit reliability
- circuit simulation
- circulant matrix
- circular distribution
- circular file
- circular lune
- circular reference
- circular scanning
- circulate
- circulating memory
- circulating register
- circulation
- circumscribed figure
- circumscribed sphere
- citation index
- civil construction
- clad
- clamping
- class
- class attribute
- class declaration
- class field
- class group
- class interval
- class mean
- class specifications
- class symbol
- class transition
- classification level
- classification statistic
- Clausius equation
- clean compile
- clear all
- clear display
- clear key
- clear span
- clear text
- chloring
- choice box
- choice type
- choking coil
- choose
- chord
- chord splice
- chord stress
- chrominance channel
- cigar lighter
- cipher system
- circuit analyzer
- circuit conditioning
- circuit element
- circuit method
- circuit shift
- circuital
- circuitry
- circular
- circular axis
- circular cone
- circular curve
- circular cylinder
- circular function
- circular graph
- circular list
- circular measure
- circular orbit
- circular register
- chrominance
- chrominance frequency
- chronological order
- chuck drill
- chug
- chunk
- cipher
- cipher key
- cipher text
- circle formula
- circle group
- circuit analyse
- circuit board