Definition of witches' broom in English:

witches' broom

Syllabification: witch·es' broom

noun

  • Dense twiggy growth in a tree caused by infection with fungus (especially rusts), mites, or viruses.
    More example sentences
    • His research includes two major goals: understanding genetic diversity of the fungus that causes witches' broom and identifying resistance to the disease.
    • The tropical climates where cacao grows best are also perfect incubators for fungal diseases like black pod, witches' broom, and frosty pod rot.
    • ‘Because the two fungi are related,’ Aime says, ‘biocontrol methods now used to keep witches' broom in check may also work for frosty pod.’

More definitions of witches' broom

Definition of witches' broom in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day astrogation
Pronunciation: ˌastrəˈgāSHən
noun
(in science fiction) navigation in outer space