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]

The Collaborative International Dictionary of English. 2000.


Look at other dictionaries:

  • mildew — [mil′do͞o΄, mil′dyo͞o΄] n. [ME mildewe < OE meledeaw, nectar, lit., honeydew, akin to Goth milith, honey < IE base * melit (> L mel, Gr meli, honey) + base of OE deaw,DEW] 1. a thin, furry, usually whitish coating or discoloration,… …   English World dictionary

  • Mildew — Mil dew, v. t. [imp. & p. p. {Mildewed}; p. pr. & vb. n. {Mildewing}.] To taint with mildew; as, mildewed clothing. [1913 Webster] He . . . mildews the white wheat. Shak. [1913 Webster] …   The Collaborative International Dictionary of English

  • Mildew — Mil dew, v. i. To become tainted with mildew. [1913 Webster] …   The Collaborative International Dictionary of English

  • mildew — (n.) mid 13c., mildeu honeydew, nectar, from O.E. meledeaw honeydew (sticky stuff exuded by aphids), from P.Gmc. compound of *melith honey (see MELISSA (Cf. Melissa)) + *dawwaz dew (see DEW (Cf. dew)). Cf. O.S. milidou, Du …   Etymology dictionary

  • mildew — ► NOUN ▪ a coating of minute fungi on plants or damp organic material such as paper or leather. ► VERB ▪ affect with mildew. ORIGIN Old English …   English terms dictionary

  • Mildew — (engl., spr. milldju), Meltau des Weinstocks, s. Peronospora …   Meyers Großes Konversations-Lexikon

  • Mildew — Example of downy mildew (left) along with powdery mildew on a grape leaf …   Wikipedia

  • mildew — mildewy, adj. /mil dooh , dyooh /, n. 1. Plant Pathol. a disease of plants, characterized by a cottony, usually whitish coating on the surface of affected parts, caused by any of various fungi. 2. any of these fungi. Cf. downy mildew, powdery… …   Universalium

  • mildew — mil•dew [[t]ˈmɪlˌdu, ˌdyu[/t]] n. 1) ppa a disease of plants, characterized by a cottony, usu. whitish coating on the affected parts, caused by any of various fungi 2) fng any of these fungi, esp. downy mildew or powdery mildew 3) fng any similar …   From formal English to slang

  • mildew — I. noun Etymology: Middle English, from Old English meledēaw honeydew; akin to Old High German militou honeydew Date: 14th century 1. a. a superficial usually whitish growth produced especially on organic matter or living plants by fungi (as of… …   New Collegiate Dictionary

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