hemichordate

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noun hemi·chor·date \ˌhe-mi-ˈkȯr-dət, -ˈkȯr-ˌdāt\

Definition of hemichordate

  1. :  any of a phylum (Hemichordata) of wormlike marine animals (such as an acorn worm) that have in the proboscis an outgrowth of the pharyngeal wall which superficially resembles the notochord of chordates

Origin and Etymology of hemichordate

New Latin Hemichordata, from hemi- + Chordata chordates


First Known Use: 1885


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