noun
- Plural of ectomere; cells or segments formed during early embryonic development from the outer germ layer (ectoderm).
Usage: technical; biology; embryology
Examples
- During embryogenesis, ectomeres differentiate to form the nervous system and skin.
- The ectomeres are derived from the ectoderm, the outermost of the three primary germ layers.
- Researchers studied how ectomeres migrate and organize during early development.