alluvium

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noun al·lu·vi·um \-vē-əm\

Definition of alluvium

plural

alluviums

or

-via

\-vē-ə\
  1. :  clay, silt, sand, gravel, or similar detrital material deposited by running water

Origin and Etymology of alluvium

Medieval Latin, alteration of Latin alluvio


First Known Use: circa 1656


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