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optical illusion

n.
1.an optical phenomenon that results in a false or deceptive visual impression

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Word of the Day

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  • optical glass
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  • optical fusion
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  • optical flint
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  • optical fibre
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  • optical fiber
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  • optical disk
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  • optical disc
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  • optical device
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  • optical crown
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  • optical condenser
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  • optical instrument
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  • optical lens
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  • optical maser
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  • optical opacity
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  • optical phenomenon
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  • optical prism
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  • optical pyrometer
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  • optical telescope
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  • optically
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  • optician
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  • unmarred
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  • night-stop
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  • local anesthesia
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  • poetic
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  • festinate
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  • first earl of orford
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  • national library of medicine
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  • calystegia
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  • growing pains
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    Idiom of the Day

    tooth and nail
    fiercely, as hard as possible
    The man decided to fight tooth and nail to transfer to another department of the company.



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    If someone is marked down as a criminal, they are definitely a criminal.

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