schistosome
Concise Oxford English Dictionary © 2008 Oxford University Press:
schistosome /ˈʃɪstə(ʊ)ˌsəʊm/
▶noun a parasitic flatworm which causes bilharzia in humans, infesting freshwater snails when immature and the blood vessels of birds and mammals when adult. [Genus Schistosoma.]
– origin early 20th cent.: from mod. L. Schistosoma, from Gk skhistos ‘divided’ + sōma ‘body’.
'schistosome' also found in these Oxford entries:

