transverse dune

[trăns-vûrs, trănsvûrs′]
  1. A large, strongly asymmetrical, elongated dune lying at right angles to the prevailing wind direction. Transverse dunes have a gently sloping windward side and a steeply sloping leeward side. They generally form in areas of sparse vegetation and abundant sand. Most beach dunes are transverse dunes. See illustration at dune. Compare longitudinal dune.
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