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polar vortex

[ poh-ler vawr-teks ]

noun

, plural po·lar vor·ti·ces [poh, -ler , vawr, -t, uh, -seez] po·lar vor·tex·es
  1. a whirling mass of very cold air that sits over the North or South Pole:

    A displaced polar vortex is causing Arctic temperatures across the United States.



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Word History and Origins

Origin of polar vortex1

First recorded in 1910–15

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