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Definition of Cataclysmal
1. Adjective. Severely destructive. "A cataclysmic earthquake" 
Definition of Cataclysmal
1. a. Of or pertaining to a cataclysm.
Definition of Cataclysmal
1. [adj]
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1. Adjective. Severely destructive. "A cataclysmic earthquake" 
1. a. Of or pertaining to a cataclysm.
1. [adj]