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trematode

trem·a·tode [ trémmə td ] (plural trem·a·todes)


noun 
Definition:
 
parasitic flatworm: a flatworm that lives as a parasite in the liver, gut, lungs, or blood vessels of vertebrates, attaching itself by suckers or hooks and sometimes causing serious disease. Class Trematoda.

[Mid-19th century. Via modern Latin Trematoda< Greek trēmatōdēs "perforated" (because many have perforated skins) < trēma "hole, orifice"]
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