Definition of Contour line

1. Noun. A line drawn on a map connecting points of equal height.

Exact synonyms: Contour
Generic synonyms: Isometric, Isometric Line
Specialized synonyms: Thalweg
Derivative terms: Contour

Definition of Contour line

1. Noun. (context: geography) A line on a map through points of equal elevation, often height above sea level. ¹

¹ Source:

Lexicographical Neighbors of Contour Line

contour feather
contour feathers
contour interval
contour language
contour line (current term)
contour lines
contour lines of Owen
contour map
contour sheet
contour tone

Literary usage of Contour line

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Collected Mathematical Papers of Arthur Cayley by Arthur Cayley (1891)
"Imagine, to fix the ideas, a mountainous island, the exterior or sea-level contour line being consequently a closed curve ; the case where any contour line ..."

2. The Principles and Practice of Surveying by Charles Blaney Breed, George Leonard Hosmer (1908)
"A contour line is the intersection of a level surface with the surface of the ground. A clearer conception of a contour line may be obtained from the ..."

3. The Civil Engineer's Pocket-book by John Cresson Trautwine (1907)
"Finally draw by hand a curving line through t, SI, i, atid y; and the contour line of 1(13 ft if done. All the others arc prepared in the same way, ..."

4. Properties of Matter by Peter Guthrie Tait (1899)
"contour line. It is the path along which a drop of water would trickle down. ... The characteristic of the col is that, at such a point, a contour line ..."

5. The Century Dictionary: An Encyclopedic Lexicon of the English Language by William Dwight Whitney (1889)
"The act of forming or determining a contour or contour-line. ... It is essential to the completeness of a contour-line that it should be carried on till it ..."

6. Training Manual in Topography, Map Reading, and Reconnaissance by George Redfield Spalding (1918)
"He has learned perhaps that a contour is a line connecting points of equal elevation; that contours do not cross; that a contour line either closes on ..."

7. Spons' Dictionary of Engineering, Civil, Mechanical, Military, and Naval by Edward Spon, Oliver Byrne (1874)
"The contour line is level. The line cutting the contour line at right angles ... If the route follow exactly the direction of the contour line from A to B, ..."

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