extratropical cyclone

[ ek-struh-trop-i-kuh l, ek- ]
/ ˈɛk strəˈtrɒp ɪ kəl, ˌɛk- /


any large-scale, cyclonic storm that is not a tropical cyclone, especially the common frontal cyclone of the middle and high latitudes.

Nearby words

  1. extrasolar planet,
  2. extrasystole,
  3. extraterrestrial,
  4. extraterritorial,
  5. extraterritoriality,
  6. extrauterine,
  7. extravagance,
  8. extravagancy,
  9. extravagant,
  10. extravagantes

Origin of extratropical cyclone

First recorded in 1920–25; extra- + tropical

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science 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.