Declivity /(?)/

De·cliv·i·ty

Declivity

n.

pl. Declivities

  1. Deviation from a horizontal line; gradual descent of surface; inclination downward; slope; -- opposed to acclivity, or ascent; the same slope, considered as descending, being a declivity, which, considered as ascending, is an acclivity.
  2. A descending surface; a sloping place.
    Commodious declivities and channels for the passage of the waters.