adjective Meteorology.

of or relating to a cyclone.
describing a direction of rotation that is counterclockwise in the Northern Hemisphere, clockwise in the Southern Hemisphere.

Also cy·clon·i·cal.

Origin of cyclonic

First recorded in 1855–60; cyclone + -ic
Related formscy·clon·i·cal·ly, adverbpre·cy·clon·ic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cyclonic

Contemporary Examples of cyclonic

Historical Examples of cyclonic

Word Origin and History for cyclonic

1860, from cyclone + -ic.

Online Etymology Dictionary, © 2010 Douglas Harper