Precession

/pɹɪsˈɛʃən/

/pɹiˈsɛʃən/

Precession

the act of preceding in time or order or rank (as in a ceremony)

synonyms : precedence

the motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone

Examples

1. In physics, precession is the change in the direction of the rotation axis of a body in rotary motion.

2. The precession of the Earth's axis has a number of observable effects.

3. The answer to this question is, simply, Earth's axis precession.

4. The precession isn’t really that big for planets around a normal star.