Rust

noun

/ɹʌst/

Word Frequency: 2.7

Definitions

1.nounThe deteriorated state of iron or steel as a result of moisture and oxidation.

"The rust on my bicycle chain made cycling to work very dangerous."

2.nounA similar substance based on another metal (usually with qualification, such as "copper rust").

"aerugo. Green or blue-green copper rust; verdigris. (American Heritage Dictionary, 1973)"

3.nounA reddish-brown color.

4.nounA disease of plants caused by a reddish-brown fungus.

5.nounDamage caused to stamps and album pages by a fungal infection.

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