- callisthenics
- callous
- civil day
- calm
- calomel
- calorie
- calve
- colpocele
- cauterization
- castration
- cryosurgery
- caress
- cricket
- caper
- circumvent
- Chloromycetin
- cephalosporin
- chloramphenicol
- chlortetracycline
- courser
- corkwood
- cotton plant
- cedar
- cochineal
- chick
- collaborator
- cockscomb
- chic
- chocolate
- claret
- coloring
- composite
- curative
- Cancer
- Caprella
- characteristic
- comfort
- civil time
- comfortable
- chafe
- consumption
- coprophagy
- cologne
- crackpot
- cleric
- cilium
- cubic measure
- chiliasm
- contingent
- cortege