Definition of "carnotite" []

• A yellow ore of uranium and radium with composition K(UO2)2(VO4)2·3H2O. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Did he happen to know where they might find an ore called carnotite?"
• "But the discovery in 1924 of a large pitchblende deposit in the Belgian Congo provided a more dependable radium supply and the interest in American carnotite fizzled."
• "The first plant was created in France and worked very successfully, but afterwards manufactures were founded in other countries, the most important of which are now in America, where great quantities of radium ore, named "carnotite," are available."