Found 1 items, similar to Rust joint.
English → English
Definition: Rust joint
, 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
2. (Bot.) A minute mold or fungus forming reddish or rusty
spots on the leaves and stems of cereal and other grasses
), 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.
Note: Rust is also applied to many other minute fungi which
infest vegetation, such as the species of Ustilago
, and Lecythea
3. That which resembles rust in appearance or effects.
Specifically: (a) A composition used in making a rust
joint. See Rust joint
(b) Foul matter arising from degeneration; as, rust on
(c) Corrosive or injurious accretion or influence.
Sacred truths cleared from all rust and dross of
human mixtures. --Eikon
Note: Rust is used in the formation of compounds of obvious
meaning; as, rust-colored, rust-consumed, rust-eaten,
and the like.
, 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,
(Zo["o]l.), a minute mite (Phytopius oleivorus
which, by puncturing the rind, causes the rust-colored
patches on oranges.