contour line

See more synonyms for contour line on
  1. a line joining points of equal elevation on a surface.
  2. the representation of such a line on a map.
  3. Mathematics. a line parallel to a trace.Compare trace1(def 11).

Origin of contour line

First recorded in 1835–45
Also called contour, level curve, level line. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for contour line

contour, hachure, isoline

Examples from the Web for contour line

Historical Examples of contour line

British Dictionary definitions for contour line

contour line

  1. a line on a map or chart joining points of equal height or depthOften shortened to: contour
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

contour line in Science

contour line

  1. 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.