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extratropical cyclone

[ ek-struh-trop-i-kuhl sahy-klohn ]
/ ˈɛk strəˈtrɒp ɪ kəl ˈsaɪ kloʊn /
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noun Meteorology.
a cold-core storm system occurring over land or water and energized by the interaction of cold and warm air masses: the common frontal cyclones that produce much of the precipitation of the middle latitudes are examples of extratropical cyclones, as are blizzards and nor’easters.
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Also called mid-latitude cyclone [mid-lat-i-tood sahy-klohn], /ˈmɪdˈlæt ɪ tud ˈsaɪ kloʊn/, mid-latitude storm [mid-lat-i-tood stawrm]. /ˈmɪdˈlæt ɪ tud ˈstɔrm/.

Origin of extratropical cyclone

First recorded in 1920–25; extra- + tropical
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use extratropical cyclone in a sentence

Scientific definitions for extratropical cyclone

extratropical cyclone
[ ĕk′strə-trŏpĭ-kəl ]

See under cyclone.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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