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radius - definition and synonyms


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noun [countable] radius pronunciation in American English /ˈreɪdiəs/
Word Forms
pluralradii or radiuses

Related words

  1. 1
    maths the distance from the center of a circle to its edge, or a straight line from the center to the edge
    1. a.
      a particular distance in all directions from a central point

      All roads within a two-mile radius of the stadium were closed.

  2. 2
    medical the larger outer bone in the lower arm, next to the ulna


to fall over forwards so that your face hits the ground or another surface

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the activity of exploring abandoned buildings and other manmade structures

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