uraninite

noun

ura·​ni·​nite yu̇-ˈrā-nə-ˌnīt How to pronounce uraninite (audio)
: a black octahedral mineral that consists of an oxide of uranium which usually contains thorium, lead, and rare earth elements and is the chief ore of uranium

Word History

Etymology

German Uranin uraninite (from New Latin uranium) + English -ite

First Known Use

1879, in the meaning defined above

Time Traveler
The first known use of uraninite was in 1879

Dictionary Entries Near uraninite

Cite this Entry

“Uraninite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uraninite. Accessed 19 Mar. 2024.

Kids Definition

uraninite

noun
ura·​ni·​nite yu̇-ˈrā-nə-ˌnīt How to pronounce uraninite (audio)
: a mineral that is a black oxide of uranium, contains also various metals (as thorium and lead), and is the chief ore of uranium

Medical Definition

uraninite

noun
ura·​ni·​nite yu̇-ˈrā-nə-ˌnīt How to pronounce uraninite (audio)
: a mineral that is basically a black octahedral or cubic oxide of uranium containing lead, thorium, and rare earth elements and that is the chief ore of uranium

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