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optics

n.
1.the branch of physics that studies the physical properties of light

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Word of the Day

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  • optician
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  • optically
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  • optical telescope
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  • optical pyrometer
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  • optical prism
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  • optical phenomenon
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  • optical opacity
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  • optical maser
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  • optical instrument
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  • optimal
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  • optimally
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  • optimisation
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  • optimism
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  • sugar sumac
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  • run dry
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  • enteric bacteria
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    Idiom of the Day

    pull down (something) or pull (something) down
    to demolish something
    The city will pull down the old office building rather than rebuild it.



    1.
    He did not get a promotion, as there was a/an ________ report against him.

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