- coincidence function
- coincident
- coining
- coinstantaneous
- coke bed
- coke breaker
- coke coal
- coke firing
- coke fork
- coke lay
- coke oven
- coking coal
- coking plant
- cold
- cold air
- cold backup
- cold boot
- cold brine
- cold cutter
- cold demand
- cold drawing
- cold flame
- cold forging
- cold gas
- cold joint
- cold liquor
- cold molding
- cold operation
- cold pit
- cold resistance
- cold rolling
- cold set
- cold slug
- cold soldering
- cold start
- cold starting
- cold store
- cold strength
- cold test
- cold work
- cold-hammer
- cold-laid
- cold-short
- collapse load
- collapse test
- collapsible form
- collar
- collaring
- collate
- collating sequence
- collation
- collator
- collect call
- collected frost
- collecting
- collecting flue
- collection charge
- collection tank
- collective agreement
- collective housing
- collective mark
- collective region
- collimator
- collision blasting
- collision energy
- collocate
- colloidal part
- colloidal solution
- colloidparticle
- colony
- colophony
- color analyser
- color background
- color code
- color fastness
- color fringing
- collide with
- collier
- colligative
- collinear array
- collision door
- collision test
- colloid
- colloidal
- colloidal systems
- collotype plate
- colluvial deposit
- colly
- colonnade
- color
- color analyzer
- color balance
- color cast
- color chart
- color collotype
- color correction
- color difference
- color discrimination
- color display
- color encoder