Fascioloides

noun

Fas·​ci·​o·​loi·​des fə-ˌsē-ə-ˈlȯid-(ˌ)ēz  -ˌsī- 

: a genus of trematode worms of the family Fasciolidae including the giant liver flukes of ruminant mammals that are serious pests of livestock and game in parts of western North America