dreikanter

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dreikanter

(ˈdraɪkæntə)
n
(Geological Science) a pebble, common in desert areas, typically having three curved faces shaped by wind-blown sand
[C20: from German: three-edged thing]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
They often contain stones called dreikanters, which have been shaped by the different prevailing winds.
Stone hamadas develop from hard rocks and are covered with dreikanters, stones showing deflation.