from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A buff to gray windblown deposit of fine-grained, calcareous silt or clay.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any sediment, dominated by silt, of eolian (wind-blown) origin.
from the GNU version of the Collaborative International Dictionary of English
- n. A quaternary deposit, usually consisting of a fine yellowish earth, on the banks of the Rhine and other large rivers.
from The Century Dictionary and Cyclopedia
- n. In geology, originally, a certain loamy deposit in the valley of the Rhine; now, by extension, any detrital accumulation more or less resembling the original loess occurring in other parts of the world.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a fine-grained unstratified accumulation of clay and silt deposited by the wind
German Löss, from German dialectal Lösch, from lösch, loose; see leu- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)