uraninite Hear it!

uraninite definition

ura·ni·nite (yo̵o rā′nə nīt′, -ran′ə-)

noun

a hard, very heavy, dark-colored, radioactive mineral, UO, the chief ore of uranium; uranium oxide

Etymology: < uranium + -in + -ite

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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