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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

    spare (someone) from (something)
    to exempt someone from having to listen to or express something
    I wish that our teacher would spare us from her speeches about her difficult childhood.



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    India's ...... armoury needs replacement despite its long-term indigenisation plans and leading international arms industries are eager to sell their latest ...... to the Indian Armed Forces.

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