A blastomere of intermediate size, larger than a micromere but smaller than a macromere.
The middle zone of the mesoderm of a chordate vertebrate embryo, from which excretory tissue develops.
mesomere mes·o·mere (měz'ə-mēr', měs'-) n.
A blastomere of intermediate size, that is larger than a micromere but smaller than a macromere.
The middle zone of the mesoderm of a chordate embryo, from which excretory tissue develops.