Associations to the word «Blastula»

BLASTULA, noun. (embryology) An early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid; a blastosphere.

BLASTULA, noun. 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.