A Gyration

1. (also figuratively) The act of turning or whirling, especially around a fixed axis or centre; a circular or spiral motion; rotation. Synonyms: circumvolution, spinning, wheeling
   1. (specifically, Euclidean geometry) A rotation around an axis which is not the centre of rotational symmetry; an eccentric or off-centre rotation. Gyration - Wikipedia
2. (conchology) One of the whorls of a spiral univalve shell.
3. (neurology) The arrangement of convolutions of gyri in the cerebral cortex of the brain.