PRECESSION OF THE EQUINOXES


Meaning of PRECESSION OF THE EQUINOXES in English

[precession of the equinoxes] (1621): a slow westward motion of the equinoxes along the ecliptic caused by the gravitational action of sun and moon upon the protuberant matter about the earth's equator

Merriam-Webster English vocab.      Английский словарь Merriam Webster.