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alluvium

Pronunciation: /əˈl(j)uːvɪəm/

Definition of alluvium

noun

[mass noun]
  • a deposit of clay, silt, and sand left by flowing floodwater in a river valley or delta, typically producing fertile soil.

Origin:

mid 17th century: Latin, neuter of alluvius 'washed against', from ad- 'towards' + luere 'to wash'

alluvium in other Oxford dictionaries

Definition of alluvium in the US English dictionary

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