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ion pump

n.
1.a vacuum pump that removes gas by ionizing the atoms or molecules and adsorbing them on a metal surface

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Word of the Day

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    Idiom of the Day

    push (someone) around or push around (someone)
    to make someone do what you want
    The sales manager is always pushing around his salespeople.



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    Pick the correct Antonym:
    Euphonious

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