SCHISTOSOME

[schis.to.some] n [NL Schistosoma, fr. Gk schistos + soma body] (1905): any of a genus (Schistosoma) of elongated trematode worms with the sexes separate that parasitize the blood vessels of birds and mammals and cause a destructive human schistosomiasis; broadly: a worm of the family (Schistosomatidae) that includes this genus -- schis.to.som.al adj -- schistosome adj