a line joining points of equal elevation on a surface.
the representation of such a line on a map.
Mathematics. a line parallel to a trace.
Compare 1 (def 11).
a line on a map or chart joining points of equal height or depth Often shortened to contour
A line on a map joining points of equal elevation above a given level, usually mean sea level. ◇ The change in elevation between one contour line and the next is the contour interval.
noun 1. a topographic map on which the shape of the land surface is shown by contour lines, the relative spacing of the lines indicating the relative slope of the surface. noun See topographic map contour map A map that shows elevations above sea level and surface features of the land by means of contour […]
- Contour ploughing
noun 1. ploughing following the contours of the land, to minimize the effects of erosion
noun 1. a bed sheet designed to fit snugly over a mattress or the like, often having elastic material to hold down the corners.
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