witches' broom

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witches' broom

n.
1. An abnormal brushlike growth of closely clustered shoots or twigs on a plant, often caused by a fungus or virus.
2. Any of various plant diseases characterized by such growths, especially a destructive fungal disease of cacao caused by the basidiomycetous fungus Crinipellis perniciosa.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.witches' broom - an abnormal tufted growth of small branches on a tree or shrub caused by fungi or insects or other physiological disturbance
tuft, tussock - a bunch of hair or feathers or growing grass
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Some baffles inside the flue would divert the ball into one or other of the four rooms, dislodging props like a witch's broom or a secret door and, possibly, knocking over one of the plastic figures.
A one-U sum adds up, I've found A two-U suum, humming sound But I bet you a witch's broom you never saw a three-U suuum EDWARD WOLPOW commented regarding the May 2015 issue:
The variety was nearly driven to extinction in 1917 after the outbreak of Witch's Broom disease, and in recent years many experts did not believe that pure Nacional cacao trees still existed.
Bu's room, fly on a witch's broom," edited to reflect his recent passing.
Supported by Vale and in coordination with the Sultan Qaboos University (SQU), the project was established in 2012 with the aim of restoring Oman's two most traditional crops, by investigating control measures against Mango Wilt and Witch's Broom that have been affecting these yields, and in turn, help achieve better growth and harvest.
* Cocoa: 2012/13 production revised down from 220,000 tonnes to 200,000 on the recent outbreak of witch's broom; 2013/14 production revised up from 200,000 tonnes to 230,000 tonnes owing to a faster-than-expected recovery.
ALL aboard the witch's broom for a magical ride - there's room for everyone!
ALL aboard the witch's broom for what promises to be a magical ride.
Fahd bin Mahmoud al-Zadjali of Biochemistry, Faculty of Medicine and Health Sciences and "Characterization of Resistant Disease Causes Witch's Broom Disease on Omani Lemon " by principal researchers Dr.
Washington, September 14 ( ANI ): A new image from the Wide Field Imager on the MPG/ESO 2.2-meter telescope at ESO's La Silla Observatory in Chile shows the Pencil Nebula against a rich starry background looking like a witch's broom.
In addition to direct feeding damage, BMSB is also known as a vector of witch's broom phytoplasma in Paulownia tomentosa (Thunb.) (Lamiales: Paulowniaceae) in Asia (Gao et al.