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1. Oxford American Dictionary

   polar wandering

   • IPA[ˈpōlər ˈwänd(ə)riNG]

   • n.
     the slow and erratic, real or apparent, movement of the earth's rotational or magnetic poles relative to the continents throughout geological time, due largely to continental drift.

   • noun: polar wandering

2. • 更多解釋

   polar wandering

   • n.
     the slow erratic movement of the earth's poles relative to the continents throughout ...

   Oxford Dictionary