any of various cestode flatworms that live in the adult stage as parasites in the intestines of humans and other vertebrates and in the larval stage usually in various intermediate hosts
See tapeworm in American Heritage Dictionary 4
(tāpˈwûrmˌ)
noun
Any of various ribbonlike, often very long flatworms of the class Cestoda, that lack an alimentary canal and are parasitic in the intestines of vertebrates, including humans.