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contour interval

American  

noun

  1. the difference in elevation represented by each contour line on a topographic map.


contour interval British  

noun

  1. the difference in altitude represented by the space between two contour lines on a map

"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

Example Sentences

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Contour interval below the 600-foot curve, 3,000 feet.

From North America by Russell, Israel C. (Cook)