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polar wander

British

noun

geology the movement of the earth's magnetic poles with respect to the geographic poles

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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polar wander

The researchers agreed that true polar wander — the shifting of the north and south pole — was responsible for this ice placement.

From The Verge ● Mar. 23, 2016

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023