The act of going downward; descent; falling or sinking; declension; degradation.

<astronomy> Oblique descension, the degree or arc of the equator which descends, with a celestial object, below the horizon of an oblique sphere. Right descension, the degree or arc of the equator which descends below the horizon of a right sphere at the same time with the object.

Origin: OF. Descension, L. Descensio. See Descent.

(01 Mar 1998)