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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
- 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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