uniformitarian

[yoo-nuh-fawr-mi-tair-ee-uhn]

u·ni·form·i·tar·i·an

[yoo-nuh-fawr-mi-tair-ee-uhn]
adjective
1.
supporting, conforming to, or derived from a theory or doctrine about uniformity, especially on the subject of geology.
2.
Geology. of or pertaining to the thesis that processes that operated in the remote geological past are not different from those observed now.
noun
3.
a person who accepts or supports a uniformitarian theory.

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Uniformitarian is always a great word to know.
So is convergent plate boundary. Does it mean:
tectonic boundary where two plates are moving toward each other
capability of a porous rock or sediment to permit the flow of fluids through its pore spaces

Origin:
1830–40; uniformit(y) + -arian

u·ni·form·i·tar·i·an·ism, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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World English Dictionary
uniformitarian (ˌjuːnɪˌfɔːmɪˈtɛərɪən)
 
adj
1.  of or relating to uniformitarianism
2.  of, characterized by, or conforming to uniformity
 
n
3.  a supporter of a theory of uniformity or of uniformitarianism

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