acorn worm

noun

Definition of acorn worm

: any of a class (Enteropneusta) of burrowing wormlike marine animals having an acorn-shaped proboscis and classified with the hemichordates

First Known Use of acorn worm

circa 1889, in the meaning defined above

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The first known use of acorn worm was circa 1889

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Dictionary Entries Near acorn worm

acorn woodpecker

acorn worm

à corps perdu

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Cite this Entry

“Acorn worm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acorn%20worm. Accessed 29 Jul. 2021.

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Britannica.com: Encyclopedia article about acorn worm

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