sloper

n. [ Formed (like abode fr. abide) from OE. slipen. See Slip, v. i. ] 1. An oblique direction; a line or direction including from a horizontal line or direction; also, sometimes, an inclination, as of one line or surface to another. [ 1913 Webster ]

2. Any ground whose surface forms an angle with the plane of the horizon. [ 1913 Webster ]

buildings the summit and slope of a hill. Macaulay. [ 1913 Webster ]

Under the slopes of Pisgah. Deut. iv. 49. (Rev. Ver.). [ 1913 Webster ]

3. The part of a continent descending toward, and draining to, a particular ocean; as, the Pacific slope. [ Webster 1913 Suppl. ]

☞ A slope, considered as descending, is a declivity; considered as ascending, an acclivity. [ 1913 Webster ]

Slope of a plane (Geom.), the direction of the plane; as, parallel planes have the same slope. [ 1913 Webster ]