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 6 Dec. 2022.

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

More from Merriam-Webster on uraninite

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Odd Habits and Quirks

  • image1926873504
  • Which of the following best describes an easily irritated person?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ