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witches'-broom

[ wich-iz-broom, -broom ]

noun

, Plant Pathology.
  1. an abnormal, brushlike growth of small thin branches on woody plants, caused especially by fungi, viruses, and mistletoes.


witches'-broom

/ ˈwɪtʃˌbruːm /

noun

  1. 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


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Word History and Origins

Origin of witches'-broom1

First recorded in 1865–70

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