Oncomelania

noun
On·​co·​me·​la·​nia | \ ˌäŋ-kō-mi-ˈlā-nē-ə \

Medical Definition of Oncomelania

: a genus of amphibious snails (family Bulimidae) of Asian and Pacific island freshwaters that comprises forms which are intermediate hosts of a schistosome (Schistosoma japonicum)

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