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.
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a gadget; dingus; thingumbob. |