Hemichordata
plural noun
Hemi·chordata
"+
: a division of Chordata usually considered both subphylum and class, including the Enteropneusta and Pterobranchia and in some classifications the Phoronidea, and comprising a group of vermiform marine animals that have in the proboscis an outgrowth of the pharyngeal wall which suggests and is probably homologous with the notochord of higher chordates
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“Hemichordata.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Hemichordata. Accessed 28 Nov. 2024.
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