precession of the equinoxes | (n) a slow westward shift of the equinoxes along the plane of the ecliptic caused by precession of the Earth's axis of rotation |
歳差 | [さいさ, saisa] (n) (phenomenon of) precession of the equinoxes [Add to Longdo] |
歳差運動 | [さいさうんどう, saisaundou] (n) (1) (motion of) precession of the equinoxes; (2) precession [Add to Longdo] |