Also found in: Thesaurus.
n. pl. en·to·zo·a (-zō′ə)
Any of various animals, such as tapeworms or trematodes, that inhabit the internal organs or tissues of other animals, usually as parasites.
1. (Zoology) of or relating to an entozoon
2. (Biology) living inside an animal: entozoic fungi.
en•to•zo•ic(ˌɛn təˈzoʊ ɪk)
(of a parasitic animal) living within the body of its host.