coelenteron The single body cavity within the body of a cnidarian (coelenterate). It serves as a gut and as a hydrostatic skeleton, and in some groups eggs and sperm are discharged into it. The coelenteron has a single opening, which is closable by a sphincter. Related category • ZOOLOGY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |