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r

n.
1.a unit of radiation exposure
2.(physics) the universal constant in the gas equation: pressure times volume = R times temperature
3.the 18th letter of the Roman alphabet
4.the length of a line segment between the center and circumference of a circle or sphere

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Word of the Day

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  • Idiom of the Day

    holy mackerel
    used to express strong feelings of astonishment or pleasure or anger
    "Holy mackerel," cried the little boy when he saw the new bicycle that he got for his birthday present.



    1.
    cursed is most opposite to

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