blastocyst
柯林斯詞典
1. N the blastula of mammals: a sphere of cells (trophoblast) enclosing an inner mass of cells and a fluid-filled cavity (blastocoel) 囊胚 (Also called blastosphere)[embryol]
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1. N the blastula of mammals: a sphere of cells (trophoblast) enclosing an inner mass of cells and a fluid-filled cavity (blastocoel) 囊胚 (Also called blastosphere)[embryol]