blastosphere

blastosphere has 2 senses in the JumbleFix dictionary. Letters: 12.

Definitions

• n.. The hollow globe or sphere formed by the arrangement of the blastomeres on the periphery of an impregnated ovum.
• n.. early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs