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Any of the cells resulting from the cleavage of a fertilized ovum during early embryonic development.

blas′to·mer′ic (-mîr′ĭk, -mĕr′-) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Physiology) embryol any of the cells formed by cleavage of a fertilized egg
blastomeric adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈblæs təˌmɪər)

any cell produced during cleavage.
blas`to•mer′ic (-ˈmɛr ɪk, -ˈmɪər-) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.blastomere - any cell resulting from cleavage of a fertilized eggblastomere - any cell resulting from cleavage of a fertilized egg
cell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
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References in periodicals archive ?
These blocks were immersed on the seabed off Puducherry in October 2018 and monitored over 6 months for the successful growth of blastomeres and reef as well as a home for smaller fish species.
The embryonic morphology was classified into 4 grades in terms of the regularity of blastomeres, the percentage of anucleate fragments, and all dysmorphic characteristic of the embryos.
Hall (13) claims that the mechanism in separation of blastomeres, which leads to identical twinning, could be some genetic changes that distinguish one cell from another.
PGS can be used to screen embryo biopsies for aneuploidy before transplantation, and thus promote better pregnancy outcomes from IVF therapy.[14],[15] While embryo biopsies can be performed at the zygote (via the removal of 1-2 polar bodies), cleavage (via the removal of 1-2 blastomeres from a 6-8-cell embryo), and/or blastocyst (via the removal of 5-10 TE cells) stage of development,[16] PGS is currently predominantly conducted using blastocysts, since they exhibit both a low-mosaic rate and high developmental potential, and facilitate ICM evaluation.[17],[18] Specific indications for PGS include infertility at an advanced maternal age (>35 years), previous unsuccessful IVF treatments (i.e.
Lack of multinucleated blastomeres, 4-5 blastomeres on day 3, seven or more cells on day 3, <20% fragments without nuclei and great implantation potential are distinctive qualities of good embryos.
In some species (e.g., in the Caridea), blastomeres progressively become superficial and surround an acellular yolk, forming a superficial blastoderm from which a germ disk develops (Anderson, 1973: Dohle et al., 2004; Browne et al., 2005; Klann and Scholtz, 2014; Hertzler, 2015).
Perfecting assisted reproduction technique holds potential benefits for determining sex of embryos by blastomeres sexing, supporting the conservation efforts of avian species, and benefiting research areas, such as genetic and biopharmaceutical research.
Lanza, "Human embryonic stem cell lines derived from single blastomeres," Nature, vol.
3C and 4D) and was later absorbed into one of the two cells of the first cleavage to form large and small blastomeres. Cytokinesis was observed at times synchronous to the absorption of the PL.