/ Dictionary / Index T tarweed: Meaning and Definition of Find definitions for: tar•weed Pronunciation: (tär'wēd"), [key] — n. any of several resinous or gummy, composite plants of the genus Grindelia, having solitary flower heads. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tarweed (Thesaurus) Tarvia Tarzan Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language