mesomere

noun

me·​so·​mere ˈme-zə-ˌmir How to pronounce mesomere (audio) ˈmē- How to pronounce mesomere (audio) -sə- How to pronounce mesomere (audio)
: a blastomere of medium size
also : an intermediate part of the mesoderm

Word History

Etymology

meso- + -mere

First Known Use

circa 1900, in the meaning defined above

Time Traveler
The first known use of mesomere was circa 1900

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Cite this Entry

“Mesomere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mesomere. Accessed 8 Nov. 2025.

Medical Definition

mesomere

noun
me·​so·​mere ˈmez-ə-ˌmi(ə)r How to pronounce mesomere (audio) ˈmēz- How to pronounce mesomere (audio) ˈmēs- How to pronounce mesomere (audio)
ˈmes-
: a blastomere of medium size
also : an intermediate part of the mesoderm

More from Merriam-Webster on mesomere

Last Updated: - Definition revised
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