in Geography, the westward quarter of the horizon, or that part of the horizon where the ecliptic, or the sun therein, descends into the lower hemisphere. It is used in contradistinction to orient. Hence the word occidental signifies anything belonging to the west; as occidental bezoor, occidental pearl, and the like.

Occident Estival, that point of the horizon where the sun sets at midwinter, when entering the sign Capricorn.

Occident Equinoctial, that point of the horizon where the sun sets when he crosses the equinoctial, or enters the sign of Aries or of Libra.