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Johann N., German surgeon, 1775-1840. See: Rust phenomenon.


One of several members of an order of parasitic fungi (Uredinales), all of which are parasitic on plants. Many of these are allergens.


fungal diseases of plant stems and leaves caused by members of the order Uredinales. Rusts are OBLIGATE parasites, their host plants often being cereals. For example, the fungus Puccinia graminis tritici causes black stem rust of wheat.


1. a disease of tropical fish in aquariums caused by the protozoa Oodinium limneticum and characterized by loss of luster of the skin surface. Causes heavy mortality.
2. a bacterial disease of the shell in turtles. See also shell rot.

Patient discussion about rust

Q. Are throat nodulars caused by second hand smoke, allergy drip, and reflux. Also can chlorine and rust in water

A. Throat nodules, or also known as - vocal cord nodules, are usually caused by maximum contact between the two vocal cords. The cause of these formations are usually strenuous or abusive voice practices such as yelling and coughing. Persons who are often susceptible are those who use their voice constantly in a loud environment. Examples include teachers, cheerleaders, politicians, actors, musicians and singers. I am not sure I understand the question about chlorine and rust in water, I don't think these factors have a connection to vocal cord nodules. Other throat nodules can be cause by smoking (not as much in second hand smoke), alcohol or chewed tobbacco use.

More discussions about rust
References in periodicals archive ?
The mixture of assonance and minutely modified sounds of rustless / restless / shutting / trust recurs throughout Orr's writing, with an increased insistence and beauty, as in these lines from the new poems: "Gash in the azure / fabric" (10); "What's touched / is trashed-- / ash and blast" (10).
The Stanley Rustless Steel Rule, for example, has detailed graduations in both metric and imperial, so you can be really accurate, and is available in lengths from 15cm to 1m (priced from pounds 7.
It boasted the world's first rustless iron bridge which was thrown on the scrap heap by its Labour council in the 1960s.
A THE character Lord Rustless was originally conceived for a single play Ah, There You Are, which was an episode in The Ronnie Barker Playhouse.
THIS is a bizarre-looking confection that broke Daimler, but it has a rustless fibreglass body and purring V8 engine.
Slipring Induction Motor Of Surface Traverser , Rotor Resistance Should Have Rustless Unbreakable Type Naturally Air Cooled Rv - 269 , Ra - 145 4 - Steps Complete With Sheet Encloser.