sastruga

== English == === Alternative forms === sastrugus, zastruga === Etymology === From German Sastruga, from Russian заструга (zastruga). === Noun === sastruga (plural sastrugi) Any of a series of long, wavelike ridges or grooves formed on a snow surface by the wind, especially in polar plains, and surfaces of ice-covered lakes/seas. These dunes of snow may be blown across the plains like wind-driven waves. ==== Translations ==== === References === The Heart of the Antarctic: The Story of the British Antarctic Expedition 1907 -1909 by Sir Ernest Shackleton (Collins) →ISBN