A smooth progression of colors and shades, usually from one color to another color, or from one shade to another shade of the same color.
On a graph, the slope of a straight or curved line. The slope of a curve at any given point is represented by the slope of the tangent at that point.
1. A graded change in the magnitude of some physical quantity or dimension.
2. The property possessed by a line or surface that departs from the horizontal; SYN. slope.