"liver fluke." YourDictionary, n.d. Web. 13 October 2018. <http://www.yourdictionary.com/liver-fluke>.
liver fluke. (n.d.). Retrieved October 13th, 2018, from http://www.yourdictionary.com/liver-fluke
Any of several parasitic trematode worms that infest the liver of humans and other mammals, especially Clonorchis sinensis and several species in the genus Opisthorchis, acquired from eating infected freshwater fish, and two species in the genus Fasciola, acquired from ingesting contaminated water or aquatic vegetation.
The liver-fluke (Distomum hepaticum) passes through its larval stages in the water snail Limnaea truncatula in Europe; in L.
Sommer, "Anatomy of Liver-fluke," Zeit.
Whether this view is soundly based is discussed below; the fact remains, however, that a tapeworm is, with few and rare exceptions, not directly comparable at all points with a liver-fluke or indeed with any other organism.