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Meaning of micromere

mi•cro•mere

Pronunciation: (mī'kru-mēr"), [key]
— n.
  1. a small blastomere, as one of those that form toward the animal pole in embryos that undergo unequal cleavage or those that occur in the embryo of mammals.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.