cataclysm
Cross references: 1. disaster cat.a.clysm \'kat-*-.kliz-*m\ \.kat-*-'kliz-m*l\ \-mik\ n [F cataclysme, fr. L cataclysmos, fr. Gk kataklysmos, fr. ]kataklyzein to inundate, fr. kata- + klyzein to wash - more at CLYSTER 1: FLOOD, DELUGE 2: a violent geologic change 3: a momentous and violent event marked by overwhelming upheaval and demoli tion - cat.a.clys.mal aj