uniformitarian
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u·ni·for·mi·tar·i·an·ism
(yo͞o′nə-fôr′mĭ-târ′ē-ə-nĭz′əm)n.
The theory that all geologic phenomena may be explained as the result of existing forces having operated uniformly from the origin of the earth to the present time.
u′ni·for′mi·tar′i·an adj. & n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
uniformitarian
(ˌjuːnɪˌfɔːmɪˈtɛərɪən)adj
1. (Geological Science) of or relating to uniformitarianism
2. of, characterized by, or conforming to uniformity
n
(Geological Science) a supporter of a theory of uniformity or of uniformitarianism
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
u•ni•form•i•tar•i•an
(ˌyu nəˌfɔr mɪˈtɛər i ən)adj.
1. of, pertaining to, or designating the theory that geologic processes operative in the remote past were no different from processes operative now.
n. 2. a supporter of the uniformitarian theory.
[1830–40]
u`ni•form`i•tar′i•an•ism, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.