'Rust' definitions:

Definition of 'rust'

(from WordNet)
adjective
Of the brown color of rust [syn: rust, rusty, rust- brown]
noun
A red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
noun
A plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi
noun
The formation of reddish-brown ferric oxides on iron by low- temperature oxidation in the presence of water [syn: rust, rusting]
noun
Any of various fungi causing rust disease in plants [syn: rust, rust fungus]
verb
Become destroyed by water, air, or a corrosive such as an acid; "The metal corroded"; "The pipes rusted" [syn: corrode, rust]
verb
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" [syn: corrode, eat, rust]
verb
Become coated with oxide

Definition of 'Rust'

From: GCIDE
  • Rust \Rust\, v. i. [imp. & p. p. Rusted; p. pr. & vb. n. Rusting.] [AS. rustian.]
  • 1. To contract rust; to be or become oxidized. [1913 Webster]
  • If gold ruste, what shall iron do? --Chaucer. [1913 Webster]
  • Our armors now may rust. --Dryden. [1913 Webster]
  • 2. To be affected with the parasitic fungus called rust; also, to acquire a rusty appearance, as plants. [1913 Webster]
  • 3. Fig.: To degenerate in idleness; to become dull or impaired by inaction. [1913 Webster]
  • Must I rust in Egypt? never more Appear in arms, and be the chief of Greece? --Dryden. [1913 Webster]

Definition of 'Rust'

From: GCIDE
  • Rust \Rust\, n. [AS. rust; akin to D. roest, G. & Sw. rost, Icel. ry[eth]; -- named from its color, and akin to E. red. [root]113. See Red.]
  • 1. (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. [1913 Webster]
  • 2. (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. [1913 Webster]
  • Note: Rust is also applied to many other minute fungi which infest vegetation, such as the species of Ustilago, Uredo, and Lecythea. [1913 Webster]
  • 3. That which resembles rust in appearance or effects. Specifically: (a) A composition used in making a rust joint. See Rust joint, below. (b) Foul matter arising from degeneration; as, rust on salted meat. (c) Corrosive or injurious accretion or influence. [1913 Webster]
  • Sacred truths cleared from all rust and dross of human mixtures. --Eikon Basilike. [1913 Webster]
  • Note: Rust is used in the formation of compounds of obvious meaning; as, rust-colored, rust-consumed, rust-eaten, and the like. [1913 Webster]
  • Rust joint, a joint made between surfaces of iron by filling the space between them with a wet mixture of cast-iron borings, sal ammoniac, and sulphur, which by oxidation becomes hard, and impervious to steam, water, etc.
  • Rust mite (Zool.), a minute mite (Phytopius oleivorus) which, by puncturing the rind, causes the rust-colored patches on oranges. [1913 Webster]

Definition of 'Rust'

From: GCIDE
  • Rust \Rust\, v. t.
  • 1. To cause to contract rust; to corrode with rust; to affect with rust of any kind. [1913 Webster]
  • Keep up your bright swords, for the dew will rust them. --Shak. [1913 Webster]
  • 2. Fig.: To impair by time and inactivity. --Johnson. [1913 Webster]

Definition of 'rust'

From: GCIDE
  • Ferrugo \Fer*ru"go\ (f[e^]r*r[udd]"g[-o]), n. [L., iron rust, fr. ferrum iron.] A disease of plants caused by fungi, commonly called the rust, from its resemblance to iron rust in color. [1913 Webster]

Synonyms of 'rust'

From: Moby Thesaurus

Words containing 'Rust'