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diluvial

or diluvian

[dih-loo-vee-uh l] /dɪˈlu vi əl/
adjective
1.
pertaining to or caused by a flood or deluge.
2.
Geology Now Rare. pertaining to or consisting of diluvium.
Origin of diluvial
1650-1660
1650-60; < Late Latin dīluviālis, equivalent to dīluvi(um) flood (see deluge) + -ālis -al1
Related forms
prediluvial, adjective
undiluvial, adjective
undiluvian, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for diluvian

diluvial

/daɪˈluːvɪəl; dɪ-/
adjective
1.
of or connected with a deluge, esp with the great Flood described in Genesis
2.
of or relating to diluvium
Word Origin
C17: from Late Latin dīluviālis; see diluvium
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 diluvian

diluvial

adj.

"pertaining to a flood" (or The Flood), 1650s, from Late Latin diluvialis, from Latin diluvium "flood, inundation" (see deluge (n.)). Related: Diluvian.

Online Etymology Dictionary, © 2010 Douglas Harper
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diluvian in Science
diluvial
  (dĭ-l'vē-əl)   
Relating to or produced by a flood.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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