- class ginkgopsida
- class ginkgophytina
- cocktail party
- cirsium eriophorum
- Cirsium flodmanii
- close_fisted
- conversational time sharing
- colloquialist
- conversational terminal
- casuistic
- chief organ
- canadian pondweed
- city man
- coiner
- consonantal system
- cosign
- cosignatory
- continuo
- castries
- countertenor
- crookneck squash
- caroline
- carolinas
- chanterelle
- cryptogamia
- clonic movement
- clonic contraction
- cross_ breed
- comparative grammar
- comparative
- comparative study
- comparative haematology
- comparable with
- crius
- chordate
- creepy_crawly
- ctenophore
- carrions disease
- cellular slime mold
- cortico medullary junction
- carrier load
- carrier return character
- carrier hole
- carrier spacing
- come into light
- chief chemist
- charge density
- chief pharmacist
- chief excise authority
- charge nurse