Look up: Uranium

1. Uranium
   235 Uranium 235 is a radioactive element; over time, it gradually changes into the element lead. It can be used to date very old rock layers.
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2. Uranium
   Uranium is a heavy, metallic, naturally Radioactive Element of Atomic Number 92. It has two principle isotope of uranium-235 and uranium-238 ( and very small quantities of Uranium-234). The proportions of natural uranium by weight are about 0.01% Uranium-234, 0.072% Uranium-235, and 99.27% U-238. Ur...
   Found on http://www.ionactive.co.uk/glossary.html
   
   
3. uranium
   [n] - a heavy toxic silvery-white radioactive metallic element
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. Uranium
   Although uranium is the longest known member of the actinide group of metals, it attracted scant attention until the discovery of uranium fission in 1939. It is now of vital importance as a nuclear fuel. Uranium occurs naturally as two main isotopes, ²³⁸U (99.3%) and ²³⁵U (0.7%...
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5. Uranium
   Naturally occurring radioactive metal. Exposure to uranium is a very rare cause of lung cancer.
   Found on http://www.cancerhelp.org.uk/utilities/g
   
   
6. Uranium
   Uranium is a toxic radioactive element, used in weapons of mass destruction such as dirty bombs or nuclear weapons.
   Found on http://www.army-technology.com/glossary/
   
   
7. Uranium
   A mildly radioactive element with two isotopes which are fissile (U-235 and U-233) and two which are fertile (U-238 and U-234). Uranium is the basic raw material of nuclear energy.
   Found on http://www.theiet.org/factfiles/energy/n
   
   
8. Uranium
   Uranium: A metallic element that is used as nuclear fuel and is highly toxic and radioactive. Exposure to radiation from uranium can occur in various ways. The breakdown of uranium products creates radon daughters. These can attach to dust particles and, if workers inhale the dust, the particles lod...
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9. uranium
   chemical element: atomic number 92 Category: Chemistry
   Found on http://www.mijnwoordenboek.nl/definition
   
   
10. Uranium
    A radioactive element, found in ores, of which atoms can be split to create energy.
    Found on http://www.neo.ne.gov/statshtml/glossary
    
    
11. uranium
    <element>A radioactive metallic element whose isotope, uranium-235, is a nuclear fission fuel. Plutonium, another fission fuel, can be produced from the more plentiful isotope uranium-238. ... (09 Oct 1997) ...
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12. uranium
    U noun a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
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13. uranium
    (U) (u-ra´ne-әm) a hard and heavy radioactive metallic element; atomic number, 92; atomic weight, 238.03; see Appencix 6. Naturally occurring uranium is composed of three isotopes of mass numbers 234, 235, and 238. Uranium 235 separated from U 238 undergoes fission with slow neutrons, giving...
    Found on http://www.encyclo.co.uk/local/21001
    
    
14. 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 p...
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15. uranium
    radioactive chemical element of the actinoid series of the periodic table, atomic number 92. It is an important nuclear fuel.[26 related articles]
    Found on http://www.britannica.com/eb/a-z/u/16
    
    
16. Uranium
    A mildly radioactive element with two isotopes which are fissile (U-235 and U-233) and two which are fertile (U-238 and U-234). Uranium is the basic raw material of nuclear energy.
    Found on http://www.encyclo.co.uk/local/21076
    
    
17. uranium
    uranium (yOOrā'nēum) , radioactive metallic chemical element; symbol U; at. no. 92; at. wt. 238.0289; m.p. 1,132°C; b.p. 3,818°C; sp. gr. 19.1 at 25°C; valence +3, +4, +5, or +6.Sections in this article:IntroductionPropertiesIsotopes and Radioactive DecayNatural Occurrenc...
    Found on http://www.infoplease.com/ce6/sci/A08501
    
    
18. Uranium
    Uranium is a silvery, heavy radioactive, polyvalent metallic element that is found especially in pitchblende and Uraninite and exists naturally as a mixture of three radioactive isotopes of mass number 234, 235 and 238 in the proportions of .006%, .71% and 99.28% respectively. Uranium was discovered...
    Found on http://www.probertencyclopaedia.com/brow
    
    
19. uranium
    (U) Type: Term Pronunciation: yū-rā′nē-ŭm Definitions: 1. A radioactive metallic element, atomic no. 92, atomic wt. 238.0289, occurring mainly in pitchblende and notable for its two isotopes: 238U and 235U (99.2745% and 0.720%, respectively, the rest being made up by...
    Found on http://www.medilexicon.com/medicaldictio
    
    
20. uranium
    Hard, lustrous, silver-white, malleable and ductile, radioactive, metallic element of the actinide series, atomic number 92, relative atomic mass 238.029. It is the most abundant radioactive element in the Earth's crust, its decay giving rise to essentially all radioactive elements in nature; its final decay product is the stable elemen...
    Found on http://www.talktalk.co.uk/reference/ency
    
    
21. Uranium
    Uranium is a heavy, metallic, naturally Radioactive Element of Atomic Number 92. It has two principle isotope of uranium-235 and uranium-238 ( and very small quantities of Uranium-234). The proportions of natural uranium by weight are about 0.01% Uranium-234, 0.072% Uranium-235, and 99.27% U-238. Ur...
    Found on http://www.ionactive.co.uk/glossary_atoz
    
    
22. Uranium
    (TV series) `Uranium` is an American television program about heavy metal which aired on Fuse TV (MMUSA when the program debuted) in the early 2000s. After establishing herself as the host of MMUSA`s Tastemakers program, Juliya Chernetsky, along with network producers, created <...
    Found on http://en.wikipedia.org/wiki/Uranium