Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for rust from the 1913 edition of Webster's Revised Unabridged Dictionary. Define rust using one of the most comprehensive free online dictionaries on the web.

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rust
Part of Speech: noun
Results: 11
2. That which resembles rust in appearance or effects.
5. A composition used in making a rust joint. See joint, below.
6. A minute mold or fungus forming reddish or rusty spots on the leaves and stems of cereal and other grasses ( Trichobasis Rubigo- vera), now usually believed to be a form or condition of the corn mildew ( Puccinia graminis). As rust, it has solitary reddish spores; as corn mildew, the spores are double and blackish.
Part of Speech: verb
Part of Speech: verb transitive
1. To cause to contract rust; to corrode with rust; to affect with rust of any kind.
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