barchan

[ bahr-kahn ]
/ bɑrˈkɑn /

noun

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

British Dictionary definitions for barchan

barchan

barkhan, barchane or barkan

/ (bɑːˈkɑːn) /

noun

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