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orogen

noun oro·gen \ ˈōrəjə̇n , -ˌjen \
variants: or less commonly orogene \-ˌjēn\
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Definition of orogen

plural -s
1 : a mountain mass that is a unit with respect to origin or uplift
2 : a region of mountain-making disturbance — compare kratogen

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Origin and Etymology of orogen

German orogen, back-formation from orogenie orogeny

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