Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

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

from The Century Dictionary.

  • noun A more or less impure hydrated vanadate of uranium and potash, occurring somewhat abundantly in Montrose county and elsewhere in Colorado: found as a yellow crystalline powder or in loosely coherent masses. It contains radium and is said to be highly radio-active.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mineralogy A yellow mineral that is a potassium uranyl vanadate that is a major ore or uranium, with the chemical formula K2(UO2)2(VO4)2·3H2O.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a yellow radioactive mineral; an ore of uranium and radium and vanadium

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[French, after Marie Adolphe Carnot, (died 1920), French mining engineer.]

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