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1. Meteorology
a. An atmospheric system characterized by the rapid inward circulation of air masses about a low-pressure center, usually accompanied by stormy, often destructive weather. Cyclones circulate counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
b. A violent tropical storm, especially one originating in the southwestern Pacific Ocean or Indian Ocean.
2. A violent rotating windstorm, especially a tornado.
3. Any of various devices using centrifugal force to separate materials.

[From Greek kuklōn, present participle of kukloun, to rotate, from kuklos, circle; see kwel- in Indo-European roots.]

cy·clon′ic (-klŏn′ĭk), cy·clon′i·cal adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.cyclonical - of or relating to or characteristic of the atmosphere around a low pressure center; "cyclonic cloud pattern"
meteorology - the earth science dealing with phenomena of the atmosphere (especially weather)
2.cyclonical - of or relating to or characteristic of a violent tropical storm; "cyclonic destruction"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
It is scientifically tested and cyclonically rated to ensure - when professionally installed - it can withstand wind gusts of up to 130mph.
When westerlies meet the TP, the anticyclonically curved flow to the north side forms the dynamic high pressure ridge, whereas the other branch flow to the south cyclonically shapes the dynamic low pressure trough, which is named as the southern branch trough or the India-Burma trough [1].
Now let's consider the number one rule of forecasting in the northern hemisphere: air follows all isobars cyclonically (counterclockwise) around lows and anticyclonically (clockwise) around highs.
Helena Bay, the winds curled cyclonically, and poleward wind flow was observed along the Namaqua Coast.
Graham, said Ham, "started cyclonically to tell me that while the C.P.R.
The North Atlantic is also the source for Arctic Ocean water masses, and the warm, saline Atlantic Water circulates cyclonically around the Arctic Ocean at depths of 150 to 900 m (Polyakov et al., 2005; Carmack et al., 2006).
* The wind in almost all tornadoes in the Northern Hemisphere spins counterclockwise, or cyclonically. The opposite is true in the Southern Hemisphere.