/ Dictionary / Index C coneflower: Meaning and Definition of Find definitions for: cone•flow•er Pronunciation: (kōn'flou"ur), [key] — n. any of several composite plants of the genus Rudbeckia, having flowers usually with yellow rays and a brown or black disk. any of various allied plants, as the prairie coneflower. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coneflower (Thesaurus) cone conehead Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language