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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 lines with low terminal rust reactions up to 20MRMS in slow rusting response were selected to make desirable crossing combinations (Table 1)220 advance lines were selected from 750 lines for phenotypic characterization.
Cultivars possessing slow rusting illustrated lower AUDPC at adult plant stage have race-nonspecific resistance as also described by (Sandoval-Islas et al.
Frankly, the parts just look like blobs of, well, rusting metal.
It is noted that the 304 SS does not suffer any rust over the polished free surfaces in the chloride solution, but does suffer severe rusting along scratch and crack by the wet-and-dry condition.
Friday, the 11-ton section of rusting metal broke free from the towing ship and fell back to the ocean floor.
2006) identified 6 independent loci, contributing to adult plant resistance (APR) or slow rusting contributing to two rusts in a population derived from cross of Avocet ,,S' and Pavon.
They now dip the car parts in some sort of lactose-free, magnesium-zinc, corn-syrup-based fruit shortening, which supposedly adds some protection against rusting.
After two weeks of testing, Seattle Systems showed the least signs of wear and retained full functionality, while the others experienced more significant wear to the point of heavy rusting and a loss of functionality.