cyclonical

cy·clone  (skln)

n.

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.

3. Any of various devices using centrifugal force to separate materials.

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[From Greek kukln, present participle of kukloun, to rotate, from kuklos, circle; see k^wel-¹ in Indo-European roots.]

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cy·clonic (-klnk), cy·cloni·cal adj.

Thesaurus

Adj.	1.	cyclonical - of or relating to or characteristic of the atmosphere around a low pressure center; "cyclonic cloud pattern" cyclonal, cyclonic 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" cyclonal, cyclonic