hemichordate
noun
hemi·chor·date
ˌhe-mi-ˈkȯr-dət 
-ˈkȯr-ˌdāt
: 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
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“Hemichordate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hemichordate. Accessed 28 Nov. 2024.
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