/ Dictionary / Index I ironweed: Meaning and Definition of Find definitions for: i•ron•weed Pronunciation: (ī'urn-wēd"), [key] — n. any of certain North American composite plants of the genus Vernonia, having tubular, chiefly purple or red disk flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ironweed (Thesaurus) ironware ironwood Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language