schis·​to·​some | \ ˈshi-stə-ˌsōm How to pronounce schistosome (audio) \

Definition of schistosome

: 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

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Other Words from schistosome

schistosomal \ ˌshi-​stə-​ˈsō-​məl How to pronounce schistosome (audio) \ adjective
schistosome adjective

Examples of schistosome in a Sentence

Recent Examples on the Web Also known as Snail Fever, the disease is caused by parasitic flatworms called schistosomes, which use aquatic snails as an intermediate host. Lee H. Goldberg, Ars Technica, "Can gender-bending Israeli superprawns help feed the world?," 10 May 2020 In addition to drug distribution, WHO emphasizes controlling the snails that incubate the parasitic schistosome worms. Chelsea L. Wood, The Conversation, "Identifying aquatic plants with drones could be the key to reducing a parasitic infection in people," 17 Jan. 2020 People also got itchy rashes thanks to parasites called avian schistosomes, which usually infect birds and a specific species of snail. Rachel Becker, The Verge, "There might be poop in the water you’re swimming in so please don’t swallow it, CDC says," 29 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'schistosome.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of schistosome

1905, in the meaning defined above

History and Etymology for schistosome

borrowed from New Latin Schistosoma, genus name, from Greek schistós "split, divided" (verbal adjective of schízein "to split, separate") + -o- -o- + New Latin -soma -some entry 3 — more at shed entry 1

Note: The taxon was introduced by the German zoologist David Friedrich Weinland (1829-1915) as a revision of Bilharz's Distoma haematobium, in Human Cestoides: An Essay on the Tapeworms of Man (Cambridge, MA, 1858), p. 87. Weinland describes the formation of the name as follows: "Derived from σχιστός, divided, and σῶμα, body; the body of these Trematodes being, as it were, divided for the two sexes, while all the rest of this Order are hermaphrodites."

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Time Traveler for schistosome

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The first known use of schistosome was in 1905

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Last Updated

20 Jan 2021

Cite this Entry

“Schistosome.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2021.

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More Definitions for schistosome


schis·​to·​some | \ ˈshis-tə-ˌsōm How to pronounce schistosome (audio) , ˈskis- How to pronounce schistosome (audio) \

Medical Definition of schistosome

: any trematode worm of the genus Schistosoma or of the family Schistosomatidae

called also blood fluke

Other Words from schistosome

schistosomal \ ˌshis-​tə-​ˈsō-​məl How to pronounce schistosome (audio) , ˌskis-​ How to pronounce schistosome (audio) \ adjective

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