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refraction

n.
1.the change in direction of a propagating wave (light or sound) when passing from one medium to another
2.the amount by which a propagating wave is bent

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Word of the Day

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  • refracting telescope
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  • reformer
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  • reformed
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  • reformatory
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  • refractive
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  • refractive index
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  • refractiveness
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  • refractivity
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  • refractometer
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  • refractoriness
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  • refractory
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  • refractory anaemia
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  • refractory anemia
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  • refractory period
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  • samuel wiesenthal
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  • andrei dimitrievich sakharov
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  • domestic
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    Idiom of the Day

    get the floor
    to receive official permission to speak to an audience
    When the principal finally got the floor everybody was ready to go home.



    1.
    Mary is a very calm and patient mother but lately she often ________ her naughty son.

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    Alloy : steel
    Composition : fe (98%), c (2%)
    Use : for making nails, screws, bridges.      .. More >>
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