Precession

angle between the rotational axis and orbital axis of a body

thumb|Precession of a gyroscope thumb|

gravity-induced, slow, and continuous change in the orientation of an astronomical body's rotational axis

Physical phenomenon

Length of time

precession (rotation) of the orbit of a celestial body

motion of Earth's rotational axis relative to its crust

time period in ancient historical and astrological theories of time

Precession of a gyroscope

rotation of a satellite as it orbits

relativistic correction that relates the angular velocity of the spin of a particle following a curvilinear orbit to the angular velocity of the orbital motion