gyration

1. The act of gyrating.
2. 1. Circular or spiral motion.
   2. An oscillation or varying between states: "increased volatility and unprecedented gyrations in interest rates" (Jack Egan).

noun

Circular movement around a point or about an axis: circuit, circulation, circumvolution, revolution, rotation, turn, wheel, whirl. See geometry, repetition.

Revolution about a fixed center.

The noun has 2 meanings:

Meaning #1: a single complete turn (axial or orbital)
  Synonyms: rotation, revolution

Meaning #2: the act of rotating in a circle or spiral
  Synonym: whirling

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.

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