blastocyst
US /ˈblæs.tə.sɪst/
UK /ˈblæs.tə.sɪst/
명사
1.
배반포
a blastula (= the early stage of development, consisting of a layer of cells around an empty space) of the embryo of a mammal:
예시:
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Five to six days after an egg is fertilized by a sperm, a tiny ball of cells develops called a blastocyst.
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