| 单词 | seif dune |
| 释义 | seif dune/ (seɪf) / noun(in deserts, esp the Sahara) a long ridge of blown sand, often several miles long Word Origin for seif duneseif, from Arabic: sword, from the shape of the dune Words nearby seif duneseiche, seidel, Seidlitz powder, Seidlitz powders, seif, seif dune, Seifert, Seignette's salt, seigneur, seigneury, seignior 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 Scientific definitions for seif duneseif dune [ sāf, sīf ] 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. |
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