The rumen fluke, a genus of digenetic trematodes (family Paramphistomatidae) parasitic in the rumen or paunch of cattle; species include P. microbothrioides, P. cervi, and P. liorchis. [para- + G. amphistomos, having a double mouth, fr. amphi, two-sided, + stoma, mouth]
* * *
Par·am·phis·to·mum -'fis-tə-məm n a genus (the type of the family Paramphistomidae) of conical amphistome digenetic trematodes with a large ventral sucker at the posterior end of the body see WATSONIUS
* * *
Par·am·phis·to·mum (par″am-fisґto-məm) a genus of trematodes of the family Paramphistomatidae. P. cerґvi is found in the rumen and reticulum of ruminants, causing paramphistomiasis.Medical dictionary. 2011.