Gyration

n.	1.	The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis; rotation; revolution. The gyrations of an ascending balloon. - De Quincey. 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.
	2.	(Zool.) One of the whorls of a spiral univalve shell. 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.

Noun	1.	gyration - a single complete turn (axial or orbital); "the plane made three rotations before it crashed"; "the revolution of the earth about the sun takes one year" Synonyms: revolution, rotation
	2.	gyration - the act of rotating in a circle or spiral Synonyms: whirling

angular momentum, angular motion, angular velocity, axial motion, bowling, centrifugation, circuit, circulation, circumgyration, circumrotation, circumvolution, full circle, gyre, pivoting, reeling, revolution, roll, rolling, rotation, rotational motion, round, spin, spinning, swinging, swirling, swiveling, trolling, trundling, turbination, turn, turning, volutation, volution, wheel, wheeling, whir, whirl, whirling