Definitions for "Blastomeres"
cells inside the zona pellucida (shell like covering), which form the embryo.
Any cell that occurs in the blastula.
The undifferentiated cells produced by early cleavages of the fertilized egg (ZYGOTE) inside the intact ZONA PELLUCIDA. Blastomeres are formed during the MORULA and the BLASTULA stages of the preimplantation EMBRYO.