orogeny
noun
orog·e·ny
ȯ-ˈrä-jə-nē 
: the process of mountain formation especially by folding of the earth's crust
Examples of orogeny in a Sentence
Recent Examples on the Web
Once a layer of beach sands that had been cemented together by weight, temperature and time into Tuscarora quartz arenite, the 425-million-year-old rocks were turned vertical when the North American continental plate collided with the African plate during the Appalachian orogeny.
—
Washington Post, 24 Sep. 2021
The bedrock of Sweden is dominantly 1-2.5 billion years old and the most recent tectonic event to impact the country was the Caledonian orogeny, about half a billion years ago.
—Erik Klemetti, Discover Magazine, 20 June 2018
That continental smash-up is called the Alleghanian orogeny.
—Ken Jennings, CNT, 17 July 2017
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Washington Post, 24 Sep. 2021
The bedrock of Sweden is dominantly 1-2.5 billion years old and the most recent tectonic event to impact the country was the Caledonian orogeny, about half a billion years ago.
—Erik Klemetti, Discover Magazine, 20 June 2018
That continental smash-up is called the Alleghanian orogeny.
—Ken Jennings, CNT, 17 July 2017
Cite this Entry
“Orogeny.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/orogeny. Accessed 4 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share