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planck's constant

n.
1.the constant of proportionality relating the energy of a photon to its frequency

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  • Idiom of the Day

    pass for/as (someone or something)
    to succeed in being accepted as someone or something
    The young woman was trying to pass for a reporter when she went to the concert. The man was passing as someone who knew more than he did.



    1.
    He's ________ the hospital, having a heart operation.

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