/ Dictionary / Index G grindelia: Meaning and Definition of Find definitions for: grin•de•li•a Pronunciation: (grin-dē'lē-u, -dēl'yu), [key] — n. any of various composite plants of the genus Grindelia, comprising the gumweeds. the dried leaves and tops of certain species of this plant, used in medicine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: grindelia (Thesaurus) grind grinder Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language