Showing results for planetary precession. Search instead for Voluntary+Repossession.

planetary precession

American

noun

Astronomy.

the small component of the precession of the equinoxes contributed by the motion of the ecliptic, the change in orientation of the plane of the earth's orbit being produced by the gravitational attraction of the planets.

First recorded in 1860–65

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023