transverse dune

Science Dictionary
transverse dune   (trāns-vûrs', trāns'vûrs')  Pronunciation Key 
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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