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Loess

//ˈloʊ.əs// noun

Noun

1
Any sediment, dominated by silt, of eolian (wind-blown) origin. countable, uncountable
"The Yellow River—the “Sorrow of China”—comes down from the loess hills into the great plain of China on a gently sloping fan. The river has two possible outlets to the sea, the one north of the Shantung Peninsula into the Gulf of Chihli, the other some hundreds of miles to the south of the Peninsula."
2
Acronym of locally estimated scatterplot smoothing. abbreviation, acronym, alt-of
"Locally weighted regression, or loess, is a procedure for fitting a regression surface to data through multivariate smoothing."
3
a fine-grained unstratified accumulation of clay and silt deposited by the wind wordnet

Borrowed from German Löss (“yellowish-gray soil”), from Alemannic German lösch (“loose”). Cognate with German los and English lease.

Unscramble this word: loess