adj
Freq #635284
Meanings
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1
adj
relating to, caused by, or resembling a great flood or deluge
The geologist rejected the old claim that a single diluvian event shaped the entire valley.
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2
adj
figurative: involving an overwhelming quantity or torrential force
A diluvian downpour turned the footpaths into streams within minutes.
Thesaurus
Etymology
From Latin diluvium, 'flood or deluge,' plus the adjective suffix -an. Diluvium comes from diluere, 'to wash away,' formed from dis-, 'apart,' and luere, 'to wash.' The word often appears in older geological or biblical descriptions of catastrophic flooding.