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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.


(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]


(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]
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
References in periodicals archive ?
alexandrina snail, which is neither influenced by the snail's age, the genetic origin nor by schistosome infection.
The swelling and blebbing of the tegument induced by the studied extracts had been described for different schistosome species as reported previously by Jennifer and Norson [15], Singh et al.
Modulation of the host's immune response by schistosome larvae.
Objective: This proposal builds on the proven methodology developed in the SEtTReND FP7 project to develop inhibitors of schistosome HME as lead compounds for new drugs.
In order to evaluate the sexual fitness of worms exposure to non-lethal concentrations of cardamonin, parasites were continually monitored and schistosome egg output in vitro was determined by counting the number of eggs, as previously described (de Moraes et al.
In many areas of endemic schistosome infection, a much higher proportion SCC of the bladder was seen compared to those occurring in Europe or North America.
39,40) Schistosome pigment, which is a product of hemoglobin catabolism by adult worms, is often visible as a brown pigment in both granulomas and sinusoidal Kupffer cells (Figure 10, C).
Over time any schistosome infection may cause irreparable damage in internal organs, and in children it can impair growth and cognitive development.
Studies on schistosomes in waterfowl are valuable not only from veterinarian viewpoint but also as a tool to predict the risk of human infection by the schistosome larval stages (cercariae) which develop in water snails.
Key Words: Schistosoma haematobium, schistosomiasis, schistosome, parasitic disease, trematode infections, Bilharziases, Katyama fever.
To find out whether the schistosome cells could give rise to multiple types of cells, Newmark's team added the label for dividing cells to mice infected with schistosomes, waited a week, and then harvested the parasites to see where the tag ended up.
With more diligent cleaning and removal procedures, we saw fewer cases of "swimmer's itch" (also known as schistosome dermatitis) and fewer beach closings for E.