What does "uraninite" mean?

Any of several brownish-black forms of uranium dioxide, UO₂, (especially pitchblende) that is the chief ore of uranium; it is isomorphous with thorianite.

What is a synonym for "uraninite"?

Common synonyms include: pitchblende, uranopissite.

How do you pronounce "uraninite"?

Pronounced //jʊˈɹeɪnɪnaɪt//.

Uraninite

//jʊˈɹeɪnɪnaɪt// noun

noun ·Rare ·Advanced level

Definitions

Noun

1
Any of several brownish-black forms of uranium dioxide, UO₂, (especially pitchblende) that is the chief ore of uranium; it is isomorphous with thorianite.
2
a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore wordnet

Synonyms

All synonyms

pitchblende uranopissite

Etymology

From uran- + -ine + -ite.

Related phrases

uranium dioxide

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.