/ Dictionary / Index C cardinal flower: Meaning and Definition of Find definitions for: car'dinal flow"er Pronunciation: [key] a North American plant, Lobelia cardinalis, with showy red tubular flowers in an elongated cluster. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cardinalfish cardinal grosbeak 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