catastrophism


ca·tas·tro·phism

noun \kə-ˈtas-trə-ˌfi-zəm\

Definition of CATASTROPHISM

:  a geological doctrine that changes in the earth's crust have in the past been brought about suddenly by physical forces operating in ways that cannot be observed today — compare uniformitarianism
ca·tas·tro·phist \-fist\ noun

First Known Use of CATASTROPHISM

1869

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