The definition of loess is a very rich loam of silt or clay that is deposited by the wind.
A example of loess is the clay and loam rich soil of Russia.
a fine-grained, yellowish-brown, extremely fertile loam deposited mainly by the wind and found widely in North America, Asia, and Europe
Origin of loessGerman löss, arbitrary use of dialect, dialectal lösch, loose from base of lösen, to loosen: for Indo-European base see lose
A buff to gray windblown deposit of fine-grained, calcareous silt or clay.
Origin of loessGerman Löss from German dialectal Lösch from lösch loose ; see leu- in Indo-European roots.