echinococcus
noun
any of a number of tapeworms of the genus Echinococcus whose larvae are parasitic in humans and domestic animals.
The grammatical form denoting more than one person, place, thing, or idea.
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The deception was possibly due to the presence of loose and shaggy membrane attached to the endocardial lining of the heart, or in some cases to echinococci or trichine.
From Anomalies and Curiosities of Medicine by Walter L. (Walter Lytle) Pyle