seif dune


(in deserts, esp the Sahara) a long ridge of blown sand, often several miles long

Word Origin for seif dune

seif, from Arabic: sword, from the shape of the dune
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seif dune in Science

seif 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.
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