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uniformitarianism

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Webster's 1913 Dictionary
 
 Definition: 
\U`ni*form`i*ta"ri*an*ism\, n. (Geol.)
The uniformitarian doctrine.

 
Glossary
 
 Definition: the principle which states that physical forces working today to alter the earth were also in force and working in the same way in former times.
 

 

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