apsidal motion
noun Astronomy.
the rotation of the major axis of an eccentric orbit in the plane of the orbit.
Words nearby apsidal motion
après moi le déluge, après-midi d'un faune, l', après-ski, apsaras, apse, apsidal motion, apsidiole, apsis, apsu, apsyrtus, apt
Origin of apsidal motion
First recorded in 1955–60
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020