trem·​a·​tode | \ ˈtre-mə-ˌtōd How to pronounce trematode (audio) \

Definition of trematode

: any of a class (Trematoda) of parasitic usually hermaphroditic flatworms including the flukes

Other Words from trematode

trematode adjective

Examples of trematode in a Sentence

Recent Examples on the Web Euhaplorchis californiensis, for one, is a trematode flatworm that, in its larval stage, looks a bit like a sperm, with a big head and long tail. Rachel Nuwer, Scientific American, 28 Apr. 2022 Maybe there’s a reason another name for a trematode is a fluke. Sabrina Imbler, The Atlantic, 16 Feb. 2021 Take the trematode preying on the California killifish, a normally secretive bait fish that hangs out in western salt marshes. Washington Post, 14 Dec. 2020 The free-swimming trematode parasites that trigger swimmer's itch typically experience a three-host life cycle — starting with a mud snail, then a crab or a fish that will eventually be eaten by a bird. USA TODAY, 30 Sep. 2017 Periwinkle snails infected with the trematode species Cryptocotyle lingua, for instance, eat significantly less algae along their Atlantic coast homes, because the parasite weakens their digestive tracts. Ben Panko, Smithsonian, 7 Sep. 2017

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

First Known Use of trematode

circa 1859, in the meaning defined above

History and Etymology for trematode

ultimately from Greek trēmatōdēs pierced with holes, from trēmat-, trēma hole, from tetrainein to bore — more at throw entry 1

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The first known use of trematode was circa 1859

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Cite this Entry

“Trematode.” Dictionary, Merriam-Webster, Accessed 10 Aug. 2022.

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More Definitions for trematode


trem·​a·​tode | \ ˈtrem-ə-ˌtōd How to pronounce trematode (audio) \

Medical Definition of trematode

: any parasitic flatworm (as a liver fluke) of the class Trematoda

Other Words from trematode

trematode adjective

More from Merriam-Webster on trematode Encyclopedia article about trematode


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