Any of various parasites that live in the internal organs of animals (especially intestinal worms)

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Endoparasite \En`do*par"a*site\, n. [Endo- + parasite.] (Zo["o]l.) Any parasite which lives in the internal organs of an animal, as the tapeworms, Trichina, etc.; -- opposed to ectoparasite . See Entozo["o]n . -- En`do*par`a*sit"ic , a. [1913 Webster] ||

WordNet Word definitions in WordNet
n. any of various parasites that live in the internal organs of animals (especially intestinal worms) [syn: entoparasite , entozoan , entozoon , endozoan ]

Wiktionary Word definitions in Wiktionary
n. A parasite that lives inside the body of an organism, such as a tapeworm.