Lexic.us

Definition of Evection

1. irregularity in the moon's motion [n -S]

Medical Definition of Evection

1. 1. The act of carrying up or away; exaltation. 2. An inequality of the moon's motion is its orbit 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'. The libration of the moon. Origin: L. Evectio a going up, fr. Evehere to carry out; e out + vehere to carry: cf. F evection. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Evection

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