Caudal sympathetic system see stomogastric nervous system

caudal vesicle (ARTHRO: Insecta) In braconid larvae, the hind-gut everted through the anus forming a vesicle responsible for about one third of the total gaseous exchange.

caudal wing (NEMATA) The bursa.

caudate a. [L. cauda, tail] 1. Bearing a tail or tail-like appendage. 2. (MOLL) Having the columella of a univalve shell elongated at the base.

caudocephalad adv. [L. cauda, tail; Gr. kephale, head] Directed toward the head from the caudal region.

caudula n.; pl. -lae [L. dim. cauda, tail] A little tail.

caul n. [L. caulis, stalk] (ARTHRO: Insecta) The fat bodies of larvae, thought to produce the organs of the future adults; epiploon.

caulescent a. [L. caulis, stalk] Being intermediate between sessile and stalked.

cauliculus n.; pl. -li [L. dim. caulis, stalk] (ARTHRO: Insecta)

The larger of the two stalks supporting the calyx of the mushroom body of the protocerebral lobes.

cauliform a. [L. caulis, stalk; forma, shape] Stemlike.

cauligastric a. [L. caulis, stalk; Gr. gaster, stomach] (ARTHRO: Chelicerata) Pertaining to those of the subphylum that are narrowly joined between prosoma and opisthosoma. see latigastric.

cauline a. [L. caulis, stalk] (CNID: Hydrozoa) A term used to describe nematotheca attached to the main stem of a hy-droid colony.

caulis n.; pl. caules [L. caulis, stalk] (ARTHRO: Insecta) The funicle of the antenna; the corneous basal part of the jaws.

caulome n. [Gr. kaulos, stem] (CNID: Hydrozoa) An erect stem or stalk of a solitary polyp.

causal agent or organism Any organism or chemical that induces a given disease; a causative agent.

cavate a. [L. cavus, hollow] Hollowed out; cave-like.

cavernicolous a. [L. caverna, cave; colare, to inhabit] Inhabiting caves.

cavernous a. [L. cavernosus, full of hollows] Full of cavities or hollow spaces; divided into small spaces.

cavity n.; pl. -ties [L. cavus, hollow] A hollow space or opening.

ceca see caecum cecidium n. [Gr. dim. kekis, gall] A gall.

cecidogenous a. [Gr. kekis, gall; gennaein, to produce] Producing galls on plants, as by insects and nematodes.

cecum see caecum ceiling n. [L. caelum, sky] The maximum population density for a given set of circumstances.

cell n. [L. cella, chamber] 1. A unit consisting of a nucleus and cytoplasm surrounded by a cell membrane that collectively make up the structural and functional unit in plants and animal bodies. 2. (ARTHRO: Insecta) a. One of the many small chambers in a bee or wasp colony, utilized for rearing young or storing food. b. A space in the wing membrane of an insect, partly (an open cell) or completely (a closed cell) surrounded by veins. c. A cavity under the ground containing an insect pupa.

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