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extratropical cyclone

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noun ex·tra·trop·i·cal cyclone \ˌek-strə-ˌträ-pi-kəl-\

Definition of extratropical cyclone

  1. :  a cyclone in the middle or high latitudes often containing a cold front that extends toward the equator for hundreds of miles



1923

First Known Use of extratropical cyclone

1923


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to lessen in amount, effect, or force

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