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Any of various chiefly tropical trematode worms of the family Schistosomatidae and especially the genus Schistosoma, many of which are parasitic in the blood of humans and other mammals. Also called bilharzia, blood fluke.

[New Latin Schistosōma, genus name : Greek skhistos, split; see schist + Greek sōma, body; see -some3.]

schis′to·som′al (-sō′məl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Animals) any of various blood flukes of the chiefly tropical genus Schistosoma, which cause disease in man and domestic animals. Also called: bilharzia
[C19: from New Latin Schistosoma; see schist, -some3]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈʃɪs təˌsoʊm)

1. Also called bilharzia. any trematode of the genus Schistosoma, parasitic in the blood of birds and mammals, including humans; a blood fluke.
2. Also, schis`to•so′mal. pertaining to or caused by schistosomes.
[1900–05; < New Latin Schistosoma <schist(us) (see schist) + -soma -some3]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.schistosome - flatworms parasitic in the blood vessels of mammals
trematode, trematode worm, fluke - parasitic flatworms having external suckers for attaching to a host
genus Schistosoma, Schistosoma - type genus of the family Schistosomatidae: blood flukes
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
mansoni, which is the most prominent of the schistosome species responsible for human schistosomiasis.
The identification of the major parasite proteins would give clues to the schistosome metabolism and to target molecules involved with the host immune system (1).
This may be due to the fact that singles are more likely to visit streams where they may come into contact with cercaria of schistosome. In this study, occupation did not affect the prevalence of urinary schistosomiasis, although the reason for this is unclear.
Schistosomiasis is contracted by exposure to contaminated freshwater; schistosome eggs in the water enter a snail intermediate host where they mature then are released back into water.
The nine studies cover catalytic activity in transcripts from Schistosoma non-autonomous retro-transposons, mobile genetic elements of malaria vectors and other mosquitoes, retro-transposons in the genomes of the digenean parasitic trematodes Clonochis sinensis and Paragonimus westermani, endogenous retro-transposon sequences of the Schistosoma mansoni intermediate snail host Biomphalaria glabrata, the transposon-mediated transgenis of mosquitoes, Schistosome long terminal repeat retro-transposons colonizing Schistosome genomes, Schistosome DNA transposons, and mobile genetic elements resident in hookworm genomes.
- The mammalian schistosome Heterobilharzia americana was collected from a sample of 36 raccoons (Procyon lotor) in Archer and Wichita counties of north-central Texas, providing new county records and a northern range extension for the fluke in the state.
Of these, 85% live in sub-Saharan Africa where Schistosoma haematobium accounts for 67% of schistosome infections and 70% are school age children [8, 9].
Schistosome parasites are flatworms that infect more than 200 million people a year worldwide.
Its geographical distribution continues to expand, a 5th human pathogenic schistosome, Schistosoma mekongi, having being described in Laos and Cambodia as recently as 1978.
Extensive genetic variation revealed in adjacent populations of schistosome intermediate host Biomphalaria pfeifferi from a single river system.
Non-immunologic and immunologic mechanisms play a central role in the production of ECMPs and collagen deposition around schistosome eggs in liver.