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umbilical vesicle

n.
1.membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional

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    Idiom of the Day

    nose (someone) out or nose out (someone)
    to push someone away, to exclude someone
    The famous basketball player nosed out the other players to become the best player in the league.



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    ________ laughter came from the upstairs apartment where Trang was having a graduation party.

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