The hollow world or sphere created by the arrangement regarding the blastomeres regarding the periphery of an impregnated ovum
- early stage of an embryo made by cleavage of an ovum; a liquid-filled world whose wall is composed of one level of cells; in this stage (about eight times after fertilization) implantation within the wall of this uterus takes place
- The hollow globe or sphere formed because of the arrangement of blastomeres on periphery of an impregnated ovum.
(letter.) The hollow world or sphere created because of the arrangement associated with the blastomeres in the periphery of an impregnated ovum.
The segmentation is complete; one side of the hollow blastosphere invaginates and forms a gastrula.