CADU´COUS, _a._ Falling off early.
CÆ´CAL, _a._ Pertaining to the cæca.
CÆ´CUM, _n._; pl. _cæca_. (Pronounced _see´cum_.) Intestinal cul-de-sac
at junction of smaller and larger intestines, usually present paired in
birds; sometimes a foot long. (Also written _cœcum_, _cœca_.)
CAL´AMUS, _n._ Quill; the dry, hard, horny portion of the stem of a
feather below the web, hollow or partly pithy, and translucent. Calamus
+ rhachis = scapus. (145.)
CALCA´NEAL, _a._ Pertaining to the back upper portion of the
tarso-metatarsus (tarsus of ordinary language).
CALCA´NEUM, _n._ Heel; back upper part of tarso-metatarsus. Same as
_talus_. (107.) One of the tibial condyles is by some regarded as the
homologue of the calcaneum.
CAL´CAR, _n._ Spur; sharp horn-covered bone-cored process on the shank
of many birds; also, similar horny process on the metacarpal bone.
CALCARAT´US, _a._ Spurred.
CALCA´REOUS, _a._ Chalky. A cormorant’s egg is covered with _calcareous_
substance.
CALCIF´IC, _a._ Calcifying; an epithet of that portion of the oviduct
where the egg-shell is formed.
CALIG´ULA, _n._ Same as BOOT (which see).
CAL´LUS, _n._ New bony matter joining a fracture.
CALYPTE´RIA, _n. pl._ Tail-coverts; the smaller feathers underlying or
overlying the base of the tail. (Little used.) See CRISSUM and TECTRICES
CAUDÆ. (71.)
CA´LYX, _n._ Pedicellated ovarian capsule of two membranes with lax
tissue and vessels, rupturing at a point called the _stigma_ to
discharge the ovum, then collapsing and becoming absorbed.
CAMPTE´RIUM, _n._ Front and outer border of wing as far as the bone
extends. (Little used.) (95.)
CANALIC´ULUM, _n._ Little groove.
CAN´CELLATED, _a._ Denoting bony network.
CAN´THUS, _n._; pl. _canthi_. Corner of eye where the lids meet;
commissural point of eyelids. _Canthi_ are anterior and posterior.