non alluvial

alluvial

[uh-loo-vee-uhl]
adjective
1.
of or pertaining to alluvium.
noun
2.
alluvial soil.
3.
Australia. gold-bearing alluvial soil.

Origin:
1795–1805; alluvi(um) + -al1

nonalluvial, adjective, noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
alluvial (əˈluːvɪəl)
 
adj
1.  of or relating to alluvium
 
n
2.  another name for alluvium
3.  (Austral), (NZ) alluvium containing any heavy mineral, esp gold

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

alluvial
1802, from L. alluvius "alluvial" (see alluvium).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
alluvium   (ə-l'vē-əm)  Pronunciation Key 
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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