/ Dictionary / Index B brittlebush: Meaning and Definition of Find definitions for: brit•tle•bush Pronunciation: (brit'l-boosh"), [key] — n. any of several composite plants of the genus Encelia, of desert regions of the southwestern U.S. and Mexico, having alternate leaves and yellow ray flowers with a yellow or purple center. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: brittlebush (Thesaurus) brittle brittle fern Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language