Cataclysm

имя существительное 1) катаклизм; катастрофа Синоним(ы): catastrophe 2) наводнение, потоп Синоним(ы): deluge, flood

Большой англо-русский словарь

Cataclysm

noun Etymology: French cataclysme, from Latin cataclysmos, from Greek kataklysmos, from kataklyzein to inundate, from kata- + klyzein to wash — more at clyster 1. flood, deluge 2. catastrophe 3a 3. a momentous and violent event marked by overwhelming upheaval and demolition; broadly an event that brings great changes • cataclysmal or cataclysmic adjectivecataclysmically adverb

Энциклопедический словарь Мерриама-Вебстера