n.
Function: noun
Date: circa 1568
1 : ground that forms a natural or artificial incline
2 : upward or downward slant or inclination or degree of slant
3 : the part of a continent draining to a particular ocean <Alaska's North Slope >
4 a : the tangent of the angle made by a straight line with the x-axis b : the slope of the line tangent to a plane curve at a point