Catastrophism
- n. The doctrine that the geological changes in the earth’s crust have been caused by the sudden action of violent physical causes; — opposed to the doctrine of uniformism.
The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.