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alluvion

[uh-loo-vee-uh n]
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noun
  1. Law. a gradual increase of land on a shore or a river bank by the action of water, whether from natural or artificial causes.
  2. overflow; flood.
  3. Now Rare. alluvium.

Origin of alluvion

1530–40; < Latin alluviōn- (stem of alluviō an overflowing), equivalent to al- al- + -luv-, base of -luere, combining form of lavere to wash) + -iōn- -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for alluvion

alluvion

noun
    1. the wash of the sea or of a river
    2. an overflow or flood
    3. matter deposited as sediment; alluvium
  1. law the gradual formation of new land, as by the recession of the sea or deposit of sediment on a riverbed

Word Origin

C16: from Latin alluviō an overflowing, from luere to wash
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012