plural noun Er·y·si·pha·ce·ae \ˌerəsəˈfāsēˌē\

Definition of Erysiphaceae

  1. :  a family of fungi (order Erysiphales) comprising the powdery mildews, being parasitic mostly on leaves, and having delicate hyaline superficial mycelium and perithecia with one to several asci and distinctive appendages



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Origin and Etymology of erysiphaceae

New Latin, from Erysiphe, type genus + -aceae

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to criticize severely

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