• synonyms


noun Embryology.
  1. any cell produced during cleavage.
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Origin of blastomere

First recorded in 1875–80; blasto- + -mere
Related formsblas·to·mer·ic [blas-tuh-mer-ik, -meer-] /ˌblæs təˈmɛr ɪk, -ˈmɪər-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for blastomere

Historical Examples of blastomere

  • A half-embryo or a whole dwarf may arise according to the artificial position of the blastomere.

    The Ethics of Medical Homicide and Mutilation

    Austin O'Malley

British Dictionary definitions for blastomere


  1. embryol any of the cells formed by cleavage of a fertilized egg
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Derived Formsblastomeric (ˌblæstəʊˈmɛrɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

blastomere in Medicine


  1. Any of the cells resulting from the cleavage of a fertilized ovum during early embryonic development.
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Related formsblas′to•meric (-mîrĭk, -mĕr-) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

blastomere in Science


  1. Any of the cells resulting from the cleavage of a fertilized ovum. In the initial stage of development, the blastomeres adhere to each other in a mass called a morula.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.