an internal animal parasite, esp. a parasitic worm infesting the intestines, muscles, etc.
Origin of entozoonento- + Classical Greek z?ion, animal: see bio-
Any of various animals, such as tapeworms or trematodes, that inhabit the internal organs or tissues of other animals, usually as parasites.
(plural entozoons or entozoa)
- (obsolete) Any of various microscopic parasitic worms previously classified together under the grouping Entozoa.