noun
- one of the small cells formed during the early stages of embryonic development in certain animals
Usage: biology
Examples
- The micromeres in sea urchin embryos give rise to the skeleton.
- During cleavage, the egg divides into micromeres and macromeres.
- Scientists studied how micromeres contribute to early development.
- The micromeres contain less yolk than the larger cells.
- Researchers tracked the fate of individual micromeres in the embryo.