- a crescent-shaped sand dune with the convex side in the direction of the wind.
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
barkhan, barchane or barkan
- a crescent-shaped shifting sand dune, convex on the windward side and steeper and concave on the leeward