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parabolic reflector

n.
1.a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam

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  • Idiom of the Day

    pull rank on (someone)
    to assert one`s superior position or authority on someone of lower rank in order to get a privilege or favor
    The navy officer pulled rank on the other officers and could stay in the best room in the hotel.



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    flaunt is most opposite to

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