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Definitions of radius
  1. noun
    the length of a line segment between the center and circumference of a circle or sphere

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    r
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  2. noun
    support consisting of a radial member of a wheel joining the hub to the rim

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  3. noun
    a circular region whose area is indicated by the length of its radius
    "they located it within a radius of 2 miles"
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  4. noun
    a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
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  5. noun
    the outer and slightly shorter of the two bones of the human forearm
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