mac·​ro·​mere ˈma-krə-ˌmir How to pronounce macromere (audio)
: a large blastomere see blastula illustration

Word History


macro- + -mere (in blastomere)

First Known Use

1877, in the meaning defined above

Time Traveler
The first known use of macromere was in 1877

Dictionary Entries Near macromere

Cite this Entry

“Macromere.” Dictionary, Merriam-Webster, Accessed 7 Dec. 2023.

Medical Definition


mac·​ro·​mere ˈmak-rō-ˌmi(ə)r How to pronounce macromere (audio)
: any of the large blastomeres that occur in the hemisphere of a telolecithal egg containing the vegetal pole and that are formed by unequal segmentation compare micromere

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