white rust

noun

: any of various diseases of chiefly cruciferous plants caused by a fungus (genus Albugo) and marked by white spore-filled lesions
also : a fungus causing white rust

Word History

First Known Use

1815, in the meaning defined above

Time Traveler
The first known use of white rust was in 1815

Dictionary Entries Near white rust

Cite this Entry

“White rust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/white%20rust. Accessed 5 Feb. 2023.

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