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n. pl. schis·to·som·u·la (-lə)
The immature form of a parasitic schistosome after it has entered the blood vessels of its host.

[New Latin schistosōmulum, from diminutive of Schistosōma, genus name; see schistosome.]
References in periodicals archive ?
After infecting a bird, the cercaria develops into a schistosomulum and migrates to the gastrointestinal tract where it matures and mates producing eggs starting a new cycle (Figure 6-69).