uni·​for·​mi·​tar·​i·​an·​ism | \ ˌyü-nə-ˌfȯr-mə-ˈter-ē-ə-ˌni-zəm How to pronounce uniformitarianism (audio) \

Definition of uniformitarianism

: a geologic doctrine that processes acting in the same manner as at present and over long spans of time are sufficient to account for all current geological features and all past geological changes — compare catastrophism

Examples of uniformitarianism in a Sentence

Recent Examples on the Web Substantive uniformitarianism, and incorrect theory, should be abandoned. Brian Romans, WIRED, 8 Jan. 2011

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'uniformitarianism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of uniformitarianism

1865, in the meaning defined above

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The first known use of uniformitarianism was in 1865

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Cite this Entry

“Uniformitarianism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uniformitarianism. Accessed 2 Dec. 2021.

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More from Merriam-Webster on uniformitarianism

Britannica.com: Encyclopedia article about uniformitarianism


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