[ wich-iz-broom, -broo m ]
/ ˈwɪtʃ ɪzˌbrum, -ˌbrʊm /
noun Plant Pathology.
an abnormal, brushlike growth of small thin branches on woody plants, caused especially by fungi, viruses, and mistletoes.
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Origin of witches'-broom
First recorded in 1865–70
Words nearby witches'-broom
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for witches'-broom
/ (ˈwɪtʃˌbruːm) /
a dense abnormal growth of shoots on a tree or other woody plant, usually caused by parasitic fungi of the genus Taphrina
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012