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vinyl group

n.
1.a univalent chemical radical derived from ethylene

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  • Idiom of the Day

    flip out
    to go crazy, to become very angry
    My friend flipped out when she heard that I had damaged her car.



    1.
    lachrymose

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    Fact
    Boiled grape juice was the fluid used as a lubricant for the first contact lenses. Eugene Flick, who invented contact lenses in 1887, chose boiled grape juice over sugar water to lubricate the thick glass lenses that covered the entire eye.      .. More >>
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