Definition of Leivo. Meaning of Leivo. Synonyms of Leivo
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Definition of Leivo
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Phytopius oleivorus 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.
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.
Note: Rust is also applied to many other minute fungi which
infest vegetation, such as the species of Ustilago,
Uredo, and Lecythea.
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.
Sacred truths cleared from all rust and dross of
human mixtures. --Eikon
Basilike.
Note: Rust is used in the formation of compounds of obvious
meaning; as, rust-colored, rust-consumed, rust-eaten,
and the like.
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 (Zo["o]l.), a minute mite (Phytopius oleivorus)
which, by puncturing the rind, causes the rust-colored
patches on oranges.
