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  1. Oxford American Dictionary

    island arc

    • IPA[ˈīlənd ärk]
    • n.
      a curved chain of volcanic islands located at a tectonic plate margin, typically with a deep ocean trench on the convex side.

    • noun: island arc, plural noun: island arcs

    • 更多解釋

    island arc

    • n.
      a curved chain of volcanic islands located at a tectonic plate margin, typically with a deep ...

    Oxford Dictionary