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1. (n.) uranium
a white, lustrous, radioactive, metallic element, isotopes of which are used in atomic and hydrogen bombs and as a fuel in nuclear reactors.
Etymology: (< G (1790), after the planet Uranus)
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| Definition of 'Uranium' |
Princeton's WordNet |
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1. (noun) uranium, U, atomic number 92
a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
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| Definition of 'Uranium' |
Webster Dictionary |
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1. (noun) Uranium
an element of the chromium group, found in certain rare minerals, as pitchblende, uranite, etc., and reduced as a heavy, hard, nickel-white metal which is quite permanent. Its yellow oxide is used to impart to glass a delicate greenish-yellow tint which is accompanied by a strong fluorescence, and its black oxide is used as a pigment in porcelain painting. Symbol U. Atomic weight 239.
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| Definition of 'Uranium' |
U.S. National Library of Medicine |
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1. Uranium
Uranium. A radioactive element of the actinide series of metals. It has an atomic symbol U, atomic number 92, and atomic weight 238.03. U-235 is used as the fissionable fuel in nuclear weapons and as fuel in nuclear power reactors.
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Sense: a radioactive element.
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 Afrikaans: uraan |
 Arabic: يورانيوم |
 Bulgarian: уран |
 Brazilian: urânio |
 Czech: uran |
 German: das Uran |
 Danish: uran |
 Greek: ουράνιο |
 Spanish: uranio |
 Estonian: uraan |
 Farsi: اورانیم |
 Finnish: uraani |
 French: uranium |
 Hebrew: אוּרַניוּם |
 Hindi: यूरेनियम |
 Croatian: uran |
 Hungarian: urán |
 Indonesian: uranium |
 Icelandic: úraníum, úran |
 Italian: uranio |
 Japanese: ウラニウム |
 Korean: 우라늄 |
 Lithuanian: uranas |
 Latvian: urāns |
 Malay: uranium |
 Dutch: uranium |
 Norwegian: uran |
 Polish: uran |
 Persian: اورانیم |
 Pashto: اورانیوم |
 Portuguese: urânio |
 Romanian: uraniu |
 Russian: уран |
 Slovak: urán |
 Slovenian: uran |
 Serbian: uranijum |
 Swedish: uran |
 Thai: ยูเรเนียม |
 Turkish: uranyum |
 Taiwanese: 鈾 |
 Ukrainian: уран |
 Urdu: يورينيم، ايک ريڈيائي عنصر |
 Vietnamese: urani |
 Chinese: 铀 |
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Definitions of Uranium 
