Chi-mæ´roids [Gr. chimaira, a fabled monster; eidos, form.] An order of elasmobranchii (holocephali) with opercular membrane and smooth skin.

Chi´ro-mys [Gr. cheir, hand; mus, mouse.]

Chim-pan´zee [W. Afr.] Anthropopithecus. A West African arboreal, anthropoid ape; five feet high; distinct eyelashes, eyebrows, and whiskers; very large ears. It approximates to man in its dentition and the length of its arms. Has darker hair than gorilla.

Chi´tin-ous [Gr. chiton, tunic.] Pertaining to chitin, the horny substance in the skin of insects.

Chro´ma-tin [Gr. croma, color.] Nuclear threads.

Chor-da´ta [Lat. chorda, chord.] A subkingdom of animals with a notochord persistent or evanescent.

Chro´mo-somes [Gr. croma, color: soma, body.] Nuclear threads.

Chry´so-thrix [Gr. chrysos, gold; thrix, hair.]

Clo-a´ca [Lat. cloaca, a common sewer.] The common cavity into which the digestive, urinary, and genital canals empty in most vertebrates below placentals, and in all mammalian embryos.

Coc´ci [Gr. kokkos, berry.] Pl. of coccus. Isolated spherical cells (bacteria).