What is Nutation?
Nutation definition and meaning on Dictionary terms:
an act or instance of nodding one’s head, especially involuntarily or spasmodically.
Botany. spontaneous movements of plant parts during growth.
Astronomy. the periodic oscillation observed in the precession of the earth’s axis and the precession of the equinoxes.
Mechanics. the variation of the inclination of the axis of a gyroscope to the vertical.