Definition of nutation

Definition of nutation
  1. nutation Noun a bobbing motion that accompanies the precession of a spinning rigid body
  2. nutation Noun a nodding motion (of the head etc.)
  3. nutation Noun any of several irregularities in the precession of the equinoxes caused by varying torque applied to the Earth by the Sun and the Moon
  4. nutation Noun the circular motion of the tip of a growing shoot
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