- a thin, furry, usually whitish coating or discoloration, caused by a fungus, that forms on the surface of various plants, on organic matter, or on damp paper, cloth, bathroom tiles, etc.
- any fungus that attacks various plants or that produces such a coating or discoloration
- any plant disease, as powdery mildew, caused by such fungus
Origin of mildewMiddle English mildewe ; from Old English meledeaw, nectar, literally , honeydew, akin to Gothic milith, honey ; from Indo-European base an unverified form melit- (from source Classical Latin mel, Classical Greek meli, honey) + base of Old English deaw, dew
- a. Any of various fungi or oomycetes that form a superficial, usually whitish growth on plants and various organic materials.b. A plant disease caused by such organisms.
- A superficial coating or discoloration of organic materials, such as cloth, paper, or leather, caused by fungi, especially under damp conditions.
tr. & intr.v.mil·dewed, mil·dew·ing, mil·dews
Origin of mildewMiddle English, from Old English mildēaw, honeydew, nectar; see melit- in Indo-European roots.
- A growth of minute powdery or webby fungi, whitish or of different colors, found on various diseased or decaying substances.
(third-person singular simple present mildews, present participle mildewing, simple past and past participle mildewed)
- To taint with mildew.
- (intransitive) To become tainted with mildew.