witches'-broom

[ wich-iz-broom, -broom ]
/ 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for witches'-broom

witches'-broom

witchbroom witches'-besom

/ (ˈwɪtʃˌbruːm) /

noun

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