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rest energy

n.
1.the energy equivalent to the mass of a particle at rest in an inertial frame of reference

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Word of the Day

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  • rest day
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  • responsive
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  • responsibleness
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  • responsible for
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  • responsible
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  • responsibility
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  • rest home
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  • rest house
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  • rest mass
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  • rest on
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  • rest period
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  • rest stop
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  • rest-cure
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  • rest-harrow
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  • restart
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  • restate
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  • syncategorematic
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  • effaceable
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  • ready to hand
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  • single-reed instrument
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  • teutonic
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  • isomorphism
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    Idiom of the Day

    leave a lot to be desired
    to be inadequate
    The job performance of the new employee leaves a lot to be desired.



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