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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orogen

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

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

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