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precession of the equinoxes

Definition of precession of the equinoxes

  1. :  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



1621

First Known Use of precession of the equinoxes

1621


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WORD OF THE DAY

to dishevel or rumple

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