orog·​e·​ny ȯ-ˈrä-jə-nē How to pronounce orogeny (audio)
: the process of mountain formation especially by folding of the earth's crust
orogenic adjective

Example Sentences

Recent Examples on the Web But today’s most visible on-the-ground evidence of the colliding land masses are the mountain ranges running from Georgia to Maine that arose during the Appalachian orogeny. Washington Post, 4 June 2021 That continental smash-up is called the Alleghanian orogeny. Ken Jennings, CNT, 17 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'orogeny.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


International Scientific Vocabulary

First Known Use

1890, in the meaning defined above

Time Traveler
The first known use of orogeny was in 1890

Dictionary Entries Near orogeny

Cite this Entry

“Orogeny.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/orogeny. Accessed 27 Nov. 2022.

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