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.
- acc.
- Accad
- Accad
- accede
- accedence
- acceder
- accelerando
- accelerant
- accelerate
- acceleration
- acceleration of gravity
- accelerative
- accelerator
- accelerator mass spectrometry
- acceleratory
- accelerograph
- accelerometer
- accent
- accentual
- accentually
- accentual-syllabic
- accentuate
- accentuation
- accept
- acceptability