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The scientific study of parasitic worms.

hel′min·thol′o·gist n.
References in periodicals archive ?
In his past search for parasitic worms in birds, Natterer had studied helminthology at the Naturalien-Cabinete of Vienna's Hofmuseum under the supervision of Johann Gottfried Bremser (1767-1827), a physician and helminthologist.
In 1877, Joseph Bancroft in Australia found adult worm but the life history of the worm still eluded the helminthologists of that time.