Gyration

Gy*ra"tion

(j*r"shn), 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. Newton.
[1913 Webster]

2. (Zol.) 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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Wed 22nd May 2019