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hydroxyl group

n.
1.the monovalent group -OH in such compounds as bases and some acids and alcohols

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    Idiom of the Day

    under wraps
    not allowed to be seen until the right time, in secrecy
    The new car was still under wraps when the car show started.



    1.
    Because when the ________ of the piece arrived in the shape of a burglar to steal something, he didn't find anything valuable.

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