macromere: Meaning and Definition of

mac•ro•mere

Pronunciation: (mak'ru-mēr"), [key]
— n. Embryol.
  1. one of the large blastomeres that form toward the vegetal pole in embryos undergoing unequal cleavage.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.