Definition of "uniformitarian" [u•ni•form•i•ta•ri•an]

• One who accepts uniformitarianism, or the uniformitarian doctrine. (noun)
• Of, pertaining to, or designating, the view or doctrine that existing causes, acting in the same manner and with essentially the same intensity as at the present time, are sufficient to account for all geological changes. (adjective)

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• "He then suggests that the basalt, a remnant of the Meteors of various types fall to earth continually; some reach the surface and are then called uniformitarian theories occurred at least 3.5 billion years ago."
• "But now came Charles Lyell with his famous extension of the "uniformitarian" doctrine, claiming that past changes of the earth's surface have been like present changes in degree as well as in kind."
• "What I meant to say was that the formation of strata in the earth leads to consistent results, and the "uniformitarian" theories currently being worked on tend to mesh very well and explain each other's unusual phenomena."