(biology) Any cell that results from division of a fertilized egg.
(embryology) An early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid; a blastosphere.
One of the segments first formed by the division of the ovum.
That stage in the development of the ovum in which the outer cells of the morula become more defined and form the blastoderm.
any cell resulting from cleavage of a fertilized egg
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
In biology, a blastomere is a type of cell produced by cleavage (cell division) of the zygote after fertilization and is an essential part of blastula formation.