plural noun Sphen·acanthocephala \¦sfēn+\

Definition of Sphenacanthocephala

  1. :  a small order of Acanthocephala comprising a few parasites of birds that lack a true cephalic extrovert or proboscis

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Origin and Etymology of sphenacanthocephala

New Latin, from sphen- + Acanthocephala

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to criticize severely

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