deuterostome

noun

deu·​tero·​stome ˈdü-tə-rō-ˌstōm How to pronounce deuterostome (audio)
 also  ˈdyü-
: any of a major division (Deuterostomia) of the animal kingdom that includes the bilaterally symmetrical animals (such as the chordates) with indeterminate cleavage and a mouth that does not arise from the blastopore

Word History

Etymology

New Latin Deuterostomia, group name, from deuter- + Greek stoma mouth — more at stomach entry 1

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of deuterostome was in 1950

Dictionary Entries Near deuterostome

Cite this Entry

“Deuterostome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deuterostome. Accessed 30 Nov. 2022.

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