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

1 sense of blastocyst

Sense 1
blastocyst, blastodermic vessicle -- (the blastula of a placental mammal in which some differentiation of cells has occurred)
       => 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)