Also found in: Encyclopedia, Wikipedia.


a subclass of Cestoidea, the unsegmented tapeworms of that class, which are endoparasitic in the intestines and coelom of various primitive fishes and rarely in reptiles.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A subclass of the class Cestoidea, containing tapeworms that lack a scolex and are unsegmented (monozoic), in contrast to the typical tapeworms in the subclass Cestoda; larvae of c. (called lycophora) characteristically have ten hooklets rather than six. Cestodaria are believed to be primitive tapeworms, parasitizing the intestine and celomic cavities of certain fish and a few reptiles.
Farlex Partner Medical Dictionary © Farlex 2012


A subclass of the class Cestoidea. Cestodarians are intestinal and celomic parasites of elasmobranchs and primitive telost fish. They are trematodelike but are classified with cestodes because they lack an intestine.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012