• WordNet 3.6
    • n blastomere any cell resulting from cleavage of a fertilized egg
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Webster's Revised Unabridged Dictionary
    • n Blastomere (Biol) One of the segments first formed by the division of the ovum.
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Century Dictionary and Cyclopedia
    • n blastomere In embryology, one of the segments or derivative cells into which the vitellus or yolk of an ovum of one of the Metazoa divides after fecundation. See cut under gastrulation.
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Webster's Revised Unabridged Dictionary
Gr. blasto`s sprout + -mere,


In literature:

Segmentation of egg: the division of the originally single celled egg into a number of coherent cells or blastomeres; = cleavage.
"Explanation of Terms Used in Entomology" by John. B. Smith
In these cases of injured and isolated blastomeres we have, it seems to me, a plausible theory for the etiology of single terata.
"Essays In Pastoral Medicine" by Austin ÓMalley