Protostomia

plural noun

Pro·​to·​sto·​mia
: animals in which the definitive mouth develops directly from the blastopore (as most worms, bryozoans, brachiopods, mollusks, and arthropods) compare deuterostomia

Word History

Etymology

New Latin, from prot- + -stomia

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Dictionary Entries Near Protostomia

protostome

Protostomia

protostrongylin

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Cite this Entry

“Protostomia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Protostomia. Accessed 28 Nov. 2024.

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