hemi·​chor·​date ˌhe-mi-ˈkȯr-dət How to pronounce hemichordate (audio)
: 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

Word History


New Latin Hemichordata, from hemi- + Chordata chordates

First Known Use

1885, in the meaning defined above

Time Traveler
The first known use of hemichordate was in 1885

Dictionary Entries Near hemichordate

Cite this Entry

“Hemichordate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hemichordate. Accessed 13 Apr. 2024.

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