Definitions
1.NounThe act of turning or whirling, especially around a fixed axis or centre; a circular or spiral motion; rotation.
2.NounA rotation around an axis which is not the centre of rotational symmetry; an eccentric or off-centre rotation.
3.NounOne of the whorls of a spiral univalve shell.
4.NounThe arrangement of convolutions of gyri in the cerebral cortex of the brain.