- chain command
- chain dimensioning
- chain gauge
- chain guard
- chain haulage
- chain hook
- chain interruption
- chain length
- chain lift
- chain list
- chain molecule
- chain pitch
- chain reaction
- chain sheave
- chain sprocket
- chain termination
- chain wheel
- chainage
- chained addressing
- chained list
- chalk mill
- chambered hole
- chamfered
- chamfering tool
- chamosite
- chance variable
- change bit
- changeover device
- changeover temperature
- channel
- channel bed
- channel bottom
- channel effect
- channel flow
- channel indicator
- chapel circus
- chapiter
- chaplet
- chapman layer
- chaps
- chapter file
- char
- character
- character box
- character code
- character height
- character matrix
- character table
- character variable
- characteristic channel
- characteristic curve
- characteristic polynomial
- characteristic value
- charactron
- charcoal stove
- charge bunker
- charge carrier
- charge distribution
- charge mixing
- charge repel
- charged area
- charged particle
- chargeman
- charging apparatus
- charging car
- charging door
- charging equipment
- charging line
- charging valve
- chariot
- Charles" law
- charmonium
- charred
- chase
- chasing
- chateau
- cheater cord
- check
- check code
- check instrument
- check list
- check nut
- check position
- check rail
- check sampling
- check symbol
- checker
- checker pattern
- checking
- checking point
- checking routine
- checking table
- checklist
- checkout time
- cemented glass
- cementing furnace
- cementing materials
- cementing value
- cementitious agent
- cementitious matter