macromere

[ mak-ruh-meer ]

noun

, Embryology.

1. one of the large blastomeres that form toward the vegetal pole in embryos undergoing unequal cleavage.

macromere

/ ˈmækrəʊˌmɪə /

noun

1. embryol any of the large yolk-filled cells formed by unequal cleavage of a fertilized ovum

Word History and Origins

Origin of macromere¹

First recorded in 1875–80; macro- + -mere