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1 definition found
 for Radius of gyration
From The Collaborative International Dictionary of English v.0.48 :

  Gyration \Gy*ra"tion\ (j[-i]*r[=a]"sh[u^]n), n.
     1. The act of turning or whirling, as around a fixed center;
        a circular or spiral motion; motion about an axis;
        rotation; revolution.
        [1913 Webster]
              The gyrations of an ascending balloon. --De Quincey.
        [1913 Webster]
              If a burning coal be nimbly moved round in a circle,
              with gyrations continually repeated, the whole
              circle will appear like fire.         --Sir I.
        [1913 Webster]
     2. (Zool.) One of the whorls of a spiral univalve shell.
        [1913 Webster]
     Center of gyration. (Mech.) See under Center.
     Radius of gyration, the distance between the axis of a
        rotating body and its center of gyration. --Rankine.
        [1913 Webster]

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