Student Dictionary

5 entries found for rust.
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Main Entry: 1rust
Pronunciation: primarystressrschwast
Function: noun
1 : a reddish brittle coating formed on iron especially when chemically attacked by moist air and composed chiefly of ferric oxide
2 a : any of numerous destructive diseases of plants caused by fungi and characterized by reddish brown spots b : any of an order of fungi that cause plant rusts
3 : a reddish brown

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