noun
contour map; contour plot
A map or diagram that uses contour lines to represent elevation or a function of two variables. Common in geography, meteorology, and mathematics.
この等高線図を見れば、山の傾斜がよくわかる。
Looking at this contour map, you can clearly see the slope of the mountain.
気象データから等高線
We created a contour plot from the meteorological data.