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
Type | Words |
---|---|
Synonyms | blastula |
Type of | conceptus, embryo, fertilized egg |
Has types | blastodermic vessicle, blastocyst |
Derivation | blastospheric |
Sign up for free and be the first to get notified about new posts.