uniformitarian
Americanadjective
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supporting, conforming to, or derived from a theory or doctrine about uniformity, especially on the subject of geology.
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Geology. of or relating to the thesis that processes that operated in the remote geological past are not different from those observed now.
noun
adjective
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of or relating to uniformitarianism
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of, characterized by, or conforming to uniformity
noun
Other Word Forms
Etymology
Origin of uniformitarian
First recorded in 1830–40; uniformit(y) + -arian
Explanation
A uniformitarian is someone who agrees with the idea that the processes affecting Earth's geology have always acted in essentially the same way they do today. All modern-day scientists are uniformitarians. Before the mid-1800s, most scientists were catastrophists, believing that Earth's natural formations developed quickly from a series of catastrophic events and that mass extinctions were followed by brand new life forms. The modern science of geology grew out of uniformitarians realizing that the processes and natural laws observed today have existed throughout history. They saw that uniform changes over time account for all of the planet's remarkable features, from canyons and river valleys to mountains and islands.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Hancock's plaint is that mainstream science is stuck in a uniformitarian model of slow, gradual change and so cannot accept a catastrophic explanation.
From Scientific American ● Jun. 12, 2017
It is logical to use these proportions as prior probabilities by making a uniformitarian assumption that they were similar in the Mesozoic.
From Science Magazine ● Dec. 22, 2011
He was the forerunner of Lyell and of the uniformitarian school of geologists.
From Lamarck, the Founder of Evolution His Life and Work by A. S. (Alpheus Spring) Packard
We have said that Darwins hypothesis is the natural complement to Lyells uniformitarian theory in physical geology.
From Evolution and Ethics by Thomas Henry Huxley
Thus Lamarck’s idea of creation is evolutional rather than uniformitarian.
From Lamarck, the Founder of Evolution His Life and Work by A. S. (Alpheus Spring) Packard
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