Zool. [f. mod.L. Cœlelmintha, f. Gr. κοῖλ-ος hollow + ἕλμινς, ἑλμινθ- intestinal worm.] One of the Cœlelmintha, the name given by Owen to a division of the Entozoa having a distinct alimentary canal suspended in a body-cavity; a cavitary.
Hence Cœlelminthic, a., belonging to the Cœlelmintha.
1836–9. Owen, in Todd, Cycl. Anat., II. 134/2. The essential character of the cœlelminthic structure. Ibid. (1843), Invertebr. An., v. The Cœlelminthic class of Entozoa.
