uranium

1. n. 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. Source: opted

2. n. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons Source: wordnet

3. 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. Note: Uranium was discovered in the state of an oxide by Klaproth in 1789, and so named in honor of Herschel's discovery of the planet Uranus in 1781. Source: webster

4. An element of the chromium group, found in certain rareminerals, as pitchblende, uranite, etc., and reduced as a heavy,hard, nickel-white metal which is quite permanent. Its yellow oxideis used to impart to glass a delicate greenish-yellow tint which isaccompanied by a strong fluorescence, and its black oxide is used asa pigment in porcelain painting. Symbol U. Atomic weight 239. Source: adambom

5. n:100 n. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons Source: ecdict

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