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diluvium

[dih-loo-vee-uh m] /dɪˈlu vi əm/
noun, plural diluvia
[dih-loo-vee-uh] /dɪˈlu vi ə/ (Show IPA),
diluviums. Geology Now Rare.
1.
a coarse surficial deposit formerly attributed to a general deluge but now regarded as glacial drift.
Also, diluvion.
Origin
1810-1820
1810-20; < Latin dīluvium flood; see deluge
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for diluvion

diluvium

/daɪˈluːvɪəm; dɪ-/
noun (pl) -via (-vɪə)
1.
(geology) a former name for glacial drift See drift (sense 12)
Word Origin
C19: from Latin: flood, from dīluere to wash away; see dilute
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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