- cross software
- collagenous material
- collapse of lung
- clx
- curtained
- cumana
- chemical contraceptive
- clinical laboratory
- circus aeruginosus
- cirrocumulus
- charles digby harrod
- cheviots
- concertize
- chromaffin
- cartographical
- closed primary
- Church of Ireland
- cumberland plateau
- cumberland mountains
- corpora cavernosa penis
- control operator
- control data
- control test
- control variable
- cold compress
- channel_lattice complex
- complement_on ten
- cephalochordate
- crownless
- cecil j. rhodes
- cordiform
- chaim soutine
- coccidiodes immitis
- colonnaded
- cast forth
- cardiac pace maker
- commonsensical
- civil censorship
- critical frequency
- computer based learning
- clubable
- coordinate geometry language
- chained record
- clicking joint
- clickety_click
- click_clack
- cardiac opening of stomach
- cheese dip
- cast eyes over
- contours of the breasts