contour line definition

  • noun:
    • A line on a map that joins points of equal height.
    • A line on a map through points of equal height, usually height above sea level.
    • the line by which a horizontal plane intersects some of surface, or even the corresponding range in a map or chart.
    • In surveying, a line joining things of equal height on a surface; a line or degree transported over the area of a country or district at a uniform height over the sea-level.
    • a line attracted on a map connecting points of equal level

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