Definition of macromere in English:

macromere

noun

Embryology
  • A relatively large blastomere, formed by unequal division in the fertilized ovum, and usually appearing at the vegetal pole.

Origin

Late 19th century; earliest use found in Thomas Huxley (1825–1895), biologist and science educationist. From macro- + -mere. Compare micromere.

Pronunciation

macromere

/ˈmakrə(ʊ)mɪə/