Bible Dictionaries
Cataclysm

Webster's Dictionary

(1):

(n.) Any violent catastrophe, involving sudden and extensive changes of the earth's surface.

(2):

(n.) An extensive overflow or sweeping flood of water; a deluge.

Bibliography Information
Webster, Noah. Entry for 'Cataclysm'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/cataclysm.html. 1828.