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ray blight

Syllabification: ray blight

Entry from US English dictionary

Definition of ray blight in English:

noun

A fungal disease of chrysanthemums that causes collapse and rotting of the leading shoot.
  • The fungus is Didymella ligulicola, also called Ascochyta chrysanthemi

Definition of ray blight in:

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Word of the day prepotent
Pronunciation: prɪˈpəʊt(ə)nt
adjective
greater than others in power or influence