(in deserts, esp the Sahara) a long ridge of blown sand, often several miles long
makebateRead more in this article about some frequently asked questions and fun facts related to our definitions.
Alaskan Bull WormRead more in this article about some frequently asked questions and fun facts related to our definitions.
- seidlitz powder,
- seidlitz powders,
- seifert, jaroslav,
- seignette's salt,
Word Origin for seif dune
seif, from Arabic: sword, from the shape of the dune
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
A sharp-crested longitudinal sand dune or chain of sand dunes common to the Sahara and ranging up to 300 m (984 ft) in height and 300 km (186 mi) in length.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.