contour lines

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Definitions from WordNet

Noun contour line has 1 sense

contour, contour line - a line drawn on a map connecting points of equal height
--₁ is a kind of isometric line, isometric
--₁ has particulars: thalweg

Definitions from the Web

Term: Contour Lines

Contour lines, in geography and cartography, refer to a set of lines on a map that connect points of equal elevation or depth. They depict the shape and relief of the landmass or underwater surfaces, enabling visualization of terrain features.

Example Sentences:

The contour lines on the topographic map indicated the steep hillside.
The hiker followed the contour lines to find the gentlest slope.
The bathymetric chart displayed contour lines representing underwater canyons.