Evection

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Evection \E*vec"tion\ [L. evectio a going up, fr. evehere to
     carry out; e out + vehere to carry: cf. F ['e]vection.]
     1. The act of carrying up or away; exaltation. [Obs.] --Bp.
        Pearson.
        [1913 Webster]
  


     2. (Astron.)
        (a) An inequality of the moon's motion in its orbit, due
            to the attraction of the sun, by which the equation of
            the center is diminished at the syzygies, and
            increased at the quadratures by about 1[deg] 20'.
        (b) The libration of the moon. --Whewell.
            [1913 Webster]