rust

• WordNet 3.6
  • adj rust of the brown color of rust
  • v rust become coated with oxide
  • v rust become destroyed by water, air, or a corrosive such as an acid "The metal corroded","The pipes rusted"
  • v rust cause to deteriorate due to the action of water, air, or an acid "The acid corroded the metal","The steady dripping of water rusted the metal stopper in the sink"
  • n rust any of various fungi causing rust disease in plants
  • n rust the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
  • n rust a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi
  • n rust a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
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• Interesting fact: From bridges to rebar, rust is everywhere. According to a recent study, the annual cost of metallic corrosion in the U.S. is approximately $300 billion. The report, by Battelle, Columbus, Ohio, and the Specialty Steel Industry of North America, Washington, D.C., estimated that about one-third of that cost could be avoided through broader application of corrosion-resistant material and "best anti-corrosive practice" from design through maintenance.
• • Rust (Bot) A minute mold or fungus forming reddish or rusty spots on the leaves and stems of cereal and other grasses (Trichobasis Rubigo-vera), now usually believed to be a form or condition of the corn mildew (Puccinia graminis). As rust, it has solitary reddish spores; as corn mildew, the spores are double and blackish.
  • Rust Corrosive or injurious accretion or influence.
  • Rust Foul matter arising from degeneration; as, rust on salted meat.
  • Rust That which resembles rust in appearance or effects.
  • Rust (Chem) The reddish yellow coating formed on iron when exposed to moist air, consisting of ferric oxide or hydroxide; hence, by extension, any metallic film of corrosion.
  • Rust To be affected with the parasitic fungus called rust; also, to acquire a rusty appearance, as plants.
  • Rust To cause to contract rust; to corrode with rust; to affect with rust of any kind. "Keep up your bright swords, for the dew will rust them."
  • Rust To contract rust; to be or become oxidized. "If gold ruste , what shall iron do?""Our armors now may rust ."
  • Rust To degenerate in idleness; to become dull or impaired by inaction. "Must I rust in Egypt? never more
    Appear in arms, and be the chief of Greece?"
  • Rust To impair by time and inactivity.
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• Interesting fact: Iron weighs more after it rusts.
• • n rust The red or orange-yellow coating which is formed on the surface of iron when exposed to air and moisture; red oxid of iron; in an extended sense, any metallic oxid forming a coat on the metal. Oil-paint, varnish. plumbago, a film of caoutchouc, or a coating of tin may be employed, according to circumstances, to prevent the rusting of iron utensils.
  • n rust In metal-working, a composition of iron-filings and sal ammoniac, with sometimes a little sulphur, moistened with water and used for filling fast joints. Oxidation rapidly sets in, and the composition, after a time, becomes very hard, and takes thorough hold of the surfaces between which it is placed. A joint formed in this way is called a rust-joint.
  • n rust In botany, a fungous growth on plants which resembles rust on metal; plant-disease caused by fungi of the class Uredineæ (which see, for special characterization): same as brand, 6. See Fungi, mildew, Puccinia, and Trichobasis; also black rust and red rust, below.
  • n rust Any foul extraneous matter; a corrosive, injurious, or disfiguring accretion.
  • n rust Any growth, influence, or habit tending to injure the mental or moral faculties; a habit or tendency which clogs action or usefulness; also, the state of being affected with such a habit.
  • rust To contract or gather rust; be oxidized.
  • rust To assume an appearance of rust, or as if coated with rust.
  • rust To degenerate in idleness; become dull through inaction.
  • rust To cause to contract rust.
  • rust To impair by time and inactivity.
  • rust An obsolete variant of roost.
  • n rust Rust formed on iron by exposure to air and water often approaches pretty closely in composition the mineral limonite, a ferric oxyhydroxid (Fe4O3(HO)6). It also frequently contains some ferrous or ferrosoferric oxid and hydroxid, and is more or less perceptibly magnetic.
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• • n Rust rust the reddish-brown coating on iron exposed to moisture: anything resembling rust: a disease of cereals and grasses, with brown spots on the leaves, caused by fungi: a corrosive: an injurious habit: any foul matter
  • v.i Rust to become rusty: to become dull by inaction
  • v.t Rust to make rusty: to impair by time and inactivity
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• Thomas Traherne

  

  “The soul is made for action, and cannot rest till it be employed. Idleness is its rust. Unless it will up and think and taste and see, all is in vain.”
• George Whitefield

  

  “It is better to rust out than wear out.”
• Elbert Hubbard

  

  “The mintage of wisdom is to know that rest is rust, and that real life is love, laughter, and work.”
• Benjamin Franklin

  

  “Sloth, like rust, consumes faster than labor wears, while the used key is always bright.”
• Helen Hayes

  

  “If you rest, you rust.”
• German Proverb

  

  “Rest breeds rust.”

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