Zastrugi

• (n. pl.) Grooves or furrows formed in snow by the action of the wind, and running parallel with the direction of the wind. This formation results from the erosion of transverse waves previously formed.
Found on http://thinkexist.com/dictionary/meaning/zastrugi/

Zastrugi

Zas·tru'gi noun plural ; sing. - ga . [ Russian zastruga furrow made on the shore by water.] Grooves or furrows formed in snow by the action of the wind, and running parallel with the direction of the wind. This formation results from the erosion of transverse waves previously formed.
Found on http://www.encyclo.co.uk/webster/Z/1
No exact match found