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gummite

noun

gum·​mite ˈgə-ˌmīt How to pronounce gummite (audio)
: a yellow to reddish-brown mixture of hydrous oxides of uranium, thorium, and lead

Word History

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of gummite was in 1868

Rhymes for gummite

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Browse Nearby Words

gumming disease
gummite
gummosis
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Cite this Entry

“Gummite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gummite. Accessed 22 Sep. 2026.

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More from Merriam-Webster on gummite

Britannica.com: Encyclopedia article about gummite

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