/ Dictionary / Index W witches'-broom: Meaning and Definition of Find definitions for: witch•es'-broom Pronunciation: (wich'iz-brm", -broom"), [key] — n. Plant Pathol. an abnormal, brushlike growth of small thin branches on woody plants, caused esp. by fungi, viruses, and mistletoes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: witches'-broom (Thesaurus) witches' brew witches' Sabbath Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language