Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun blastosphere

1 sense of blastosphere

Sense 1
blastula, blastosphere -- (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)
       => embryo, conceptus, fertilized egg -- (an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life)