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orogen

American

[awr-uh-jen, -juhn, ohr-] / ˈɔr əˌdʒɛn, -dʒən, ˈoʊr- /

noun

Geology.

an extensive belt of rocks deformed by orogeny, associated in places with plutonic and metamorphic rocks.

< German (1921); see oro- ¹, -gen

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Tectonic history of the south Central-American orogen, in Childs and Beebe eds.,

From Genera of Leptodactylid Frogs in México by Lynch, John D.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023