(kə tas′trə fiz′əm)
- the former theory that geologic changes are caused in general by sudden upheavals rather than gradually
- an outlook envisioning imminent catastrophe
See catastrophism in American Heritage Dictionary 4
- Geology The doctrine that major changes in the earth's crust result from catastrophes rather than evolutionary processes.
- The prediction or expectation of cataclysmic upheaval, as in political or social developments.
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