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alluvial

[uh-loo-vee-uh l] /əˈlu vi əl/
adjective
1.
of or relating to alluvium.
noun
2.
alluvial soil.
3.
Australia. gold-bearing alluvial soil.
Origin of alluvial
1795-1805
1795-1805; alluvi(um) + -al1
Related forms
nonalluvial, adjective, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for alluvial

alluvial

/əˈluːvɪəl/
adjective
1.
of or relating to alluvium
noun
2.
another name for alluvium
3.
(Austral & NZ) alluvium containing any heavy mineral, esp gold
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
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Word Origin and History for alluvial
adj.

1802, from Latin alluvius "alluvial" (see alluvium) + -al (1).

Online Etymology Dictionary, © 2010 Douglas Harper
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alluvial in Science
alluvium
  (ə-l'vē-əm)   
Plural alluviums or alluvia
Sand, silt, clay, gravel, or other matter deposited by flowing water, as in a riverbed, floodplain, delta, or alluvial fan. Alluvium is generally considered a young deposit in terms of geologic time.

alluvial adjective
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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