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duality

n.
1.being twofold
2.(physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory
3.(geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry

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Word of the Day

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  • dualistic
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  • dualist
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  • dualism
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  • dual-lane
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  • dual scan display
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  • dual inline package switch
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  • dual carriageway
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  • dual
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  • duad
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  • du maurier
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  • dub
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  • dubai
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  • dubbin
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  • dubbing
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  • dubiety
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  • dubious
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  • dubiously
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  • dubiousness
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  • dubitable
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  • dublin
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  • polecat
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  • piemonte
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  • hemimetabolism
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  • innocence
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  • bad person
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  • lanchou
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  • reclassify
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  • hemitripterus americanus
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  • externality
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  • underneath
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    Idiom of the Day

    for the life of (someone)
    even if one's life were threatened (used with a negative and usually used when trying to remember something)
    For the life of me I could not remember where I put my house keys.



    1.
    I took the stairs because the lift was ________

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