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barchan

[bahr-kahn]
noun
  1. a crescent-shaped sand dune with the convex side in the direction of the wind.
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Origin of barchan

1885–90; < Russian barkhán, said to be < Turkic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for barchan

barchan

barkhan, barchane or barkan

noun
  1. a crescent-shaped shifting sand dune, convex on the windward side and steeper and concave on the leeward
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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