blastosphere

英 [b'lɑːstɒsfr] 美 [b'lɑːstɒsfr]

• 囊胚

英英释义

Noun:

1. 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

近反义词

【近义词】

• blastula 胞胚