coenurus n. [Gr. koinos, common; oura, tail] (PLATY: Cestoda) A metacestode in the family Taeniidae, in which scolices bud from an internal germinative membrane inside a bladderlike sac. see cysticercus.
coenzyme n. [L. cum, with; Gr. en, in; zyme, yeast] An organic substance associated with an enzyme in order to function; an organic cofactor.
coevolution n. [L. cum, with; evolvere, to unroll] Development of genetically determined traits in two species to facilitate some interaction, usually mutually beneficial. see counter-evolution.
coexistence n. [L. cum, with; existere, to exist] Existing at the same time and place with another.
cofactor n. [L. cum, together; facere, to act] Any accessory substance (inorganic or organic) attached to an enzyme and necessary for its function; such as a metallic ion or a coenzyme.
cohabitants n.pl. [L. cum, together; habitare, to dwell] Organisms that dwell with others.
cohesion n. [L. cum, together; haerere, to stick] Attraction between molecules of the same substance.
cohort n. [L. cohors, enclosure] In older classifications, indefinite taxonomic groups ranked above a superorder, between class and order, or related families.
coila n.; pl. -ae [Gr. koilos, hollow] (ARTHRO: Insecta) The point upon the body on which the articulation of an appendage is made.
coincident a. [L. cum, with; incadere, to fall on] Occupying the same position.
coinductura n. [L. cum, with; indutus, clothed] (MOLL: Gastropoda) In some bellerophonts, a rather thick, obliquely layered shelly coating, extending over the inner lip from within the aperture, covering part of the inductura proper.
coition, coitus n. [L. coire, to go together] Mating; copulation.
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