- witches'-broom
- noun Date: 1881 an abnormal tufted growth of small branches on a tree or shrub caused especially by parasitic organisms (as fungi, viruses, or aphids)
New Collegiate Dictionary. 2001.
witches'-broom
Look at other dictionaries:
witches'broom — n. An abnormal brushlike growth of weak, closely clustered shoots or branches on a tree, such as the hackberry, caused by fungi or viruses. * * * … Universalium
witches'-broom — [wich′iz bro͞om′] n. an abnormal growth of closely bunched, slender twigs at the ends of branches of various woody plants, caused by fungi, viruses, etc … English World dictionary
witches'-broom — | ̷ ̷ ̷ ̷| ̷ ̷ noun or witch broom : an abnormal tufted growth of small branches on a tree or shrub caused by fungi, viruses, mistletoes, insect injury, or physiological disturbances called also hexenbesen, staghead * * * /wich iz broohm , broom… … Useful english dictionary
witches'-broom — /wich iz broohm , broom /, n. Plant Pathol. an abnormal, brushlike growth of small thin branches on woody plants, caused esp. by fungi, viruses, and mistletoes. [1865 70] * * * ▪ plant disease symptom of plant disease that occurs as an abnormal… … Universalium
witches'-broom — witch′es broom n. ppa an abnormal, brushlike growth of small, thin branches on woody plants, caused esp. by fungi and viruses • Etymology: 1865–70 … From formal English to slang
witches' broom — /ˈwɪtʃəz brum/ (say wichuhz broohm) noun a dense mass of small thin branches frequently emerging from a swelling on a tree branch, as on cherry (caused by fungus of the genus Taphrina) and on conifers (caused by various mistletoes). Also, witches …
witches' broom — noun an abnormal tufted growth of small branches on a tree or shrub caused by fungi or insects or other physiological disturbance • Syn: ↑witch broom, ↑hexenbesen, ↑staghead • Hypernyms: ↑tuft, ↑tussock … Useful english dictionary
witches' broom — noun dense twiggy growth in a tree caused by infection with fungus (especially rusts), mites, or viruses … English new terms dictionary
Lilac witches’-broom — (LWB) is a disease of lilacs caused by the Phytoplasma Candidatus Phytoplasma fraxini . This phytoplasma was first identified as the causal agent of Ash Yellows and has since been attributed to both diseases.Symptoms of the LWB phytoplasma… … Wikipedia
witches'-besom — /wich iz bee zeuhm/, n. Plant Pathol. witches broom. [1865 70] * * * … Universalium
