blastula

blastula has 2 senses in the JumbleFix dictionary. Letters: 8.

Definitions

• n.. That stage in the development of the ovum in which the outer cells of the morula become more defined and form the blastoderm.
• 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