First Known Use: 1879
Dictionary
uraninite
noun ura·ni·nite \yu̇-ˈrā-nə-ˌnīt\
Definition of URANINITE
: 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
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Origin of URANINITE
German Uranin uraninite (from New Latin uranium) + English -ite
Medical Dictionary
uraninite
noun ura·ni·nite \yu̇-ˈrā-nə-ˌnīt\
Medical Definition of URANINITE
: 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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