noun oro·gen \ˈōrəjə̇n, -ˌjen\
variants: less commonly



Definition of orogen



  1. 1 :  a mountain mass that is a unit with respect to origin or uplift

  2. 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

Seen and Heard

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a rounded knoll or a ridge of ice

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