ure·​din·​i·​um ˌyu̇r-ə-ˈdi-nē-əm How to pronounce uredinium (audio)
plural uredinia ˌyu̇r-ə-ˈdi-nē-ə How to pronounce uredinium (audio)
: a usually reddish or black mass of hyphae and spores of a rust fungus forming pustules that rupture the host's cuticle
uredinial adjective

Word History


New Latin, from Latin uredin-, uredo burning, blight, from urere to burn — more at ember

First Known Use

1905, in the meaning defined above

Time Traveler
The first known use of uredinium was in 1905

Dictionary Entries Near uredinium

Cite this Entry

“Uredinium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uredinium. Accessed 6 Jun. 2023.

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