crown rust

noun

: a leaf rust of oats and other grasses that is caused by a fungus (Puccinia coronata) and is characterized by rounded light-orange uredinia and buried telia

Word History

First Known Use

circa 1899, in the meaning defined above

Time Traveler
The first known use of crown rust was circa 1899

Dictionary Entries Near crown rust

Cite this Entry

“Crown rust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crown%20rust. Accessed 5 Jun. 2023.

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