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Definition of RUST

5 definitions found:

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]

The Collaborative International Dictionary of English v.0.48 [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]

The Collaborative International Dictionary of English v.0.48 [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]

The Collaborative International Dictionary of English v.0.48 [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]

The Collaborative International Dictionary of English v.0.48 [gcide]

215 Moby Thesaurus words for "rust":
     Titian, Titian-red, adust, age, algae, antiquate, auburn, autophyte, bay, bay-colored, bayard, bean, become extinct, become obsolete, biodegradability, biodegradation, blast, blight, bracken, brazen, breakup, bricky, bronze, bronze-colored, bronzed, brown, brown algae, brownish-red, burn, cancer, canker, cardinal, carmine, carnation, carnelian, castaneous, cerise, cherry, cherry-colored, cherry-red, chestnut, chestnut-brown, climber, conferva, confervoid, copper, copper-colored, coppery, corrode, corrosion, corruption, creeper, crimson, cupreous, damask, date, decay, decomposition, degradability, degradation, diatom, dilapidation, disintegration, disorganization, dissolution, dry rot, eat, eat away, eat into, embrown, erode, fade, fern, ferruginous, fiery, fire-red, flame-colored, flame-red, flaming, fossilize, foxy, fruits and vegetables, fucus, fungus, fust, glowing, gnaw, grapevine, green algae, grow old, gules, gulfweed, henna, herb, heterophyte, hot, incarmined, incarnadine, inflame, inflamed, infrared, infuscate, iron-red, ivy, kelp, lake-colored, laky, lateritious, legume, lentil, liana, lichen, lipstick, liver-brown, liver-colored, liverwort, livid-brown, lobster-red, lose currency, lurid, madder, mahogany, maroon, mildew, miniate, mold, molder, moss, moth, moth and rust, mushroom, must, nibble away, obsolesce, outdate, oxidation, oxidization, oxidize, parasite, parasitic plant, pea, perish, perthophyte, pest, phytoplankton, planktonic algae, plant families, port-wine, puce, puffball, pulse, red, red algae, red-dyed, red-ink, red-looking, redden, reddened, reddish, reddish-amber, reddish-brown, resolution, roan, rockweed, rot, rouge, rubicund, rubify, rubiginous, rubric, rubricose, ruby, ruby-colored, ruby-red, ruddied, ruddle, ruddy, rufescent, rufous, russet, russety, rust-colored, rust-red, rusty, saprophyte, sargasso, sargassum, scarlet, sea lentil, sea moss, sea wrack, seaweed, smut, spoilage, stammel, succulent, sunburn, sunburned, suntan, superannuate, tan, terra-cotta, tile-red, toadstool, vermilion, vetch, vinaceous, vine, warm, wine, wine-colored, wine-red, worm, wort, wrack

Moby Thesaurus II by Grady Ward, 1.0 [moby-thesaurus]

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