"Gyration is another term for rotation. A center of actual rotation as well as rotational symmetry may be called gyration center, gyration point, or rotocenter. See also radius of gyration. Other terms with the "gyro-" root for rotation are gyroscope and gyroelongated. See also more terms with gyro."
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"
gyration - the act of rotating in a circle or spiral