sastrugi definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
long, wavelike ridges of hard snow, formed perpendicular to the direction of the wind and common in polar regions
Origin: ; from Russian zastruga, wind-formed furrow
sastrugi - Science Definition
Long, wavelike ridges of snow, formed by the wind and found on the polar plains. Sastrugi are usually up to several meters high and are often parallel to the prevailing wind direction.