Applied to a gastropod (Gastropoda) shell where the shell is in the shape of two cones with the bases in contact. The axial whorls make one cone, the last-formed whorl or living chamber the other cone.
Biconical
- Camp David Accord (1978)
- Camperdown, Battle of (11 October 1797)
- camphor
- Campion, St Edmund (1540–81)
- camptonite
- campus-wide information service
- Camus, Albert (1913–60)
- CAN
- Canaanites
- Canada
- Canada balsam
- Canada balsam resin
- Canadarm
- Canada–France–Hawaii Telescope
- Canadian
- Canadian Indians
- Canadian Journal of Statistics
- Canadian Space Agency
- canale
- canaliculus
- canalization((in evolutionary genetics))
- canalizing selection
- canal rays
- canals, Martian
- Canaries current