: one of the cells that are produced during cleavage of a zygote and that form the morula

Examples of blastomere in a Sentence

Recent Examples on the Web
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First, the isolated cell can be co-cultured with blastomeres from other embryos biopsied during the IVF cycle (there are almost always multiple embryos undergoing PGD biopsy per cycle). Wired Blogs, WIRED, 21 Sep. 2006

Word History

Etymology

blasto- + -mere

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of blastomere was in 1875

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Cite this Entry

“Blastomere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blastomere. Accessed 23 Apr. 2025.

Medical Definition

: a cell produced during cleavage of a fertilized egg

called also cleavage cell

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