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Catalunya
catalyse
catalysis
catalyst
catalytic
catalytic converter
catalytic cracker
catalyze
catalyzer
catamaran
catamite
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catastrophism

ca·tas·tro·phism [ kə tástrə fìzzəm ]


noun 
Definition:
 
1. theory of geologic violence: a theory, now discredited, that the geologic features of Earth were formed by a series of sudden violent catastrophes rather than a gradual evolutionary process. A more recent version of this theory holds that the evolutionary process of geologic development has on occasions been supplemented by such catastrophes.

2. pessimism: an outlook or attitude that foresees disaster as the only possible outcome of any action or situation


ca·tas·tro·phist noun
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