[syn: rust, rusty, rust-brown]
The Collaborative International Dictionary of English v.0.48:
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:
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:
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:
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]
WordNet (r) 3.0 (2006):
rust
adj 1: of the brown color of rust [syn: rust, rusty, rust-
brown]
n 1: a red or brown oxide coating on iron or steel caused by the
action of oxygen and moisture
2: a plant disease that produces a reddish-brown discoloration
of leaves and stems; caused by various rust fungi
3: the formation of reddish-brown ferric oxides on iron by low-
temperature oxidation in the presence of water [syn: rust,
rusting]
4: any of various fungi causing rust disease in plants [syn:
rust, rust fungus]
v 1: become destroyed by water, air, or a corrosive such as an
acid; "The metal corroded"; "The pipes rusted" [syn:
corrode, rust]
2: 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]
3: become coated with oxide
Moby Thesaurus II by Grady Ward, 1.0:
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