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  • word of the day

    amniotic sac

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

    Definition
    (noun) thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
    Synonyms : amnion , amnios

  • Word used in video below:
    text: a small sac of fluid located in the center of the human brain.
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