di·lu·vi·al

[dih-loo-vee-uhl]
adjective
1.
pertaining to or caused by a flood or deluge.
2.
Geology Now Rare. pertaining to or consisting of diluvium.
Also, di·lu·vi·an.


Origin:
1650–60; < Late Latin dīluviālis, equivalent to dīluvi(um) flood (see deluge) + -ālis -al1

pre·di·lu·vi·al, adjective
un·di·lu·vi·al, adjective
un·di·lu·vi·an, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To diluvial
Collins
World English Dictionary
diluvial or diluvian (daɪˈluːvɪəl, dɪ-) [Click for IPA pronunciation guide]
 
adj
1.  of or connected with a deluge, esp with the great Flood described in Genesis
2.  of or relating to diluvium
 
[C17: from Late Latin dīluviālis; see diluvium]
 
diluvian or diluvian
 
adj
 
[C17: from Late Latin dīluviālis; see diluvium]

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Diluvial is always a great word to know.
So is interrobang. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
American Heritage
Science Dictionary
diluvial   (dĭ-l'vē-əl)  Pronunciation Key 
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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Example sentences
Diluvial and alluvial sediments are unsuitable for dumps.
The sediments are alluvial, diluvial, or lacustrine.
Older sedimentary rocks are either alluvial and diluvial facies whereas the younger sedimentary rocks are lacustrine.
The sediments are composed of alluvial, diluvial, and marine sediments.
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