The Collaborative International Dictionary
Micromere
Micromere \Mi"cro*mere\, n. [Micro- + -mere.] (Biol.) One of the smaller cells, or blastomeres, resulting from the complete segmentation of a telolecithal ovum.
Wiktionary
micromere
n. An unusually small blastomere formed by unequal cleavage of a fertilized ovum