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  • word of the day

    trophoblast

    trophoblast - 365bet中国官方网站 definition and meaning for word trophoblast

    Definition
    (noun) the membrane that forms the wall of the blastocyst in early development; aids implantation in the uterine wall
    Example Sentence
    • after implantation of the blastocyst in the uterine wall the trophoblast divides into two layers, the chorion and the placenta
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