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ozonide

n.
1.any of a class of unstable chemical compounds resulting from the addition of ozone to a double bond in an unsaturated compound

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    Idiom of the Day

    play up (someone or something) or play (someone or something) up
    to call attention to someone or something, to emphasize someone or something
    During the job interview I played up my experience with computers.



    1.
    Although I'd made up my mind to do it last night now I'm not sure and am getting cold ________ about it.

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