from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A long, sharp ridge of soft, clearly differentiated sediments rising between two troughs made by wind or water erosion and extending parallel to the direction of the wind or water flow.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A large wind-eroded mass of soft or poorly consolidated rock in a
desertregion which lies parallel to the prevailing winds, often with an unusual shape.
from The American Heritage® Dictionary of the English Language, 4th Edition
[From Uigur yardïn, ablative of yar, ridge, steep bank, or of kindred Turkic origin.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
From Turkic yardang.