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onchium

noun
on·​chi·​um | \ ˈäŋkēəm\
plural onchia\ -​ēə \

Definition of onchium

: one of the hooks or rasps located in the buccal cavity of various nematode worms and serving to grasp and break up prey

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History and Etymology for onchium

New Latin, from onc- + -ium

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