The definition of a cyclone is a violent rotating windstorm.(noun)
An example of cyclone is a tornado.
See cyclone in Webster's New World College Dictionary
Origin: altered < cyclome (< Gr kyklōma, wheel), infl. by Gr kyklōn, moving in a circle < kykloein, to circle around, whirl < kyklos: see wheel
See cyclone in American Heritage Dictionary 4
Origin: From Greek kuklōn, present participle of kukloun, to rotate, from kuklos, circle; see kwel-1 in Indo-European roots.
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