mes·o·mere 
(mĕzə-mîr′, mĕs-)
(mĕzə-mîr′, mĕs-)n.
1. A blastomere of intermediate size, larger than a micromere but smaller than a macromere.
2. The middle zone of the mesoderm of a chordate vertebrate embryo, from which excretory tissue develops.
- intercontinental
- interconversion
- interconvert
- interconvertibility
- interconvertible
- intercool
- intercooler
- intercostal
- intercourse
- intercrop
- intercultural
- intercurrent
- intercut
- interdenominational
- interdental
- interdentally
- interdepartmental
- interdependence
- interdependency
- interdependent
- interdict
- interdiction
- interdictive
- interdictively
- interdictor