orogeny

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English[edit]

Etymology[edit]

From oro- +‎ -geny.

Pronunciation[edit]

  • (UK) IPA(key): /ɒˈɹɒdʒɪni/, /əˈɹɒdʒɪni/

Noun[edit]

orogeny (plural orogenies)

  1. (geology) the process of mountain building by the upward folding of the Earth's crust.
    • 2004, Richard Fortey, The Earth, Folio Society 2011, p. 102:
      When I asked Geoff Milnes what age the rocks were before they were turned into uncompromising gneisses by the Alpine orogeny he made a rueful face.

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