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Rust

/ɹʌst/

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

📖 Definitions of "Rust"

noun
  1. 1

    The 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. 2

    A 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. 3

    A reddish-brown color.

  4. 4

    A disease of plants caused by a reddish-brown fungus.

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