/ Dictionary / Index C cyclonic: Meaning and Definition of Find definitions for: cy•clon•ic Pronunciation: (sī-klon'ik), [key] — adj. Meteorol. of or pertaining to a cyclone. describing a direction of rotation that is counterclockwise in the Northern Hemisphere, clockwise in the Southern Hemisphere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cyclonic (Thesaurus) cyclone furnace cyclonite Related Content Daily Word Quiz: foliage Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language