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[uh-loo-vee-uh l] /əˈlu vi əl/
of or relating to alluvium.
alluvial soil.
Australia. gold-bearing alluvial soil.
Origin of alluvial
First recorded in 1795-1805; alluvi(um) + -al1
Related forms
nonalluvial, adjective, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for alluvial
Contemporary Examples
Historical Examples
  • The alluvial Lands, which may be subdivided into the cotton and cane districts.

    The Negro Farmer Carl Kelsey
  • The city was built in the midst of an alluvial country, far removed from the hills.

    Museum of Antiquity L. W. Yaggy
  • The alluvial soil of these islands is a marvel of fertility.

    Holland, v. 1 (of 2) Edmondo de Amicis
  • The town lay at the sea's edge on a strip of alluvial coast.

  • It was an alluvial town, called Soledad, where there was no harbour or future or recourse.

    Sixes and Sevens

    O. Henry
  • All the conditions were favourable to deep-leads of alluvial.

    Spinifex and Sand David W Carnegie
  • In many places the alluvial soil is not more than a few inches in depth.

    Spinifex and Sand David W Carnegie
  • In their place an extensive delta and alluvial fan have been formed.

  • All below, and indeed far above, was alluvial, or of recent origin.

    The Indian in his Wigwam Henry R. Schoolcraft
British Dictionary definitions for alluvial


of or relating to alluvium
another name for alluvium
(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

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

Online Etymology Dictionary, © 2010 Douglas Harper
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alluvial in Science
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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