Rust

Rust
Johann N., German surgeon, 1775–1840. See R. phenomenon.

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rust 'rəst n
1) the reddish brittle coating formed on iron esp. when chemically attacked by moist air and composed essentially of hydrated ferric oxide
2) any of numerous destructive diseases of plants produced by fungi (order Uredinales) and characterized by reddish brown pustular lesions also a fungus causing this

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(rust) 1. iron oxide or hydroxide, forming a reddish deposit on metallic iron where the latter has been exposed to moisture; also a similar deposit on other metals that have been exposed to dampness. 2. a fungus of the order Uredinales, members of which cause the plant disease also called rust. 3. a fungal disease of plants, caused by members of the class Uredinales and characterized by the formation of spots on their skin that resemble the rust of metals.

Medical dictionary. 2011.

Игры ⚽ Поможем написать реферат
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