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Search Result for "powdery mildew":
Wordnet 3.0

NOUN (1)

1. any of various fungi of the genus Erysiphe producing powdery conidia on the host surface;


The Collaborative International Dictionary of English v.0.48:

Mildew \Mil"dew\, n. [AS. melede['a]w; akin to OHG. militou, G. mehlthau, mehltau; prob. orig. meaning, honeydew; cf. Goth. milip honey. See Mellifluous, and Dew.] (Bot.) A growth of minute powdery or webby fungi, whitish or of different colors, found on various diseased or decaying substances. [1913 Webster] powdery mildew a fungal disease of plants caused by an ascomycete of the order Erysiphales, characterized by a powdery white film on the surface of the affected plants. It is damaging to, e.g., roses and lilacs. Also, a fungus that causes such a disease. [PJC]
WordNet (r) 3.0 (2006):

powdery mildew n 1: any of various fungi of the genus Erysiphe producing powdery conidia on the host surface