/ Dictionary / Index C cyclonal: Meaning and Definition of Find definitions for: cy•clo•nal Pronunciation: (sī-klōn'l), [key] — adj. of or like a cyclone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cyclonal (Thesaurus) cyclometer cyclone Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language