Dicrocoeliidae

noun plural
Di·​cro·​coe·​li·​i·​dae | \ ˌdī-krə-sə-ˈlī-ə-ˌdē How to pronounce Dicrocoeliidae (audio) \

Medical Definition of Dicrocoeliidae

: a family of small to medium-sized flattened or more or less cylindrical digenetic trematode worms that as adults parasitize the biliary ducts or occasionally other viscera of vertebrates