Car' a pace, the shell which covers a portion or all of the cephalo-thorax in crustaceans.

Car' di nal, pertaining to a cardo or hinge.

Car niv' or ous, flesh-eating.

Car ot' id, a large artery which supplies the brain and head with blood.

Car' pal, a bone of the wrist.

Cat' er pil lar, the larva of a butterfly or moth.

Caud al, pertaining to the tail.

Cell, the smallest living unit.

Cell-wall, the lifeless membrane surrounding many cells, secreted by the protoplasm.

Central cavity, the cavity surrounded by the body-wall in the simpler many-celled animals, as in the sponges.