uranium
n. silvery white radioactive metallic element whose atomic number is 92 used in nuclear reactions and atomic bombs | ||||
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Uranium Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Uranium
(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.
(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.
| WordNet 2.0 |
uranium
Noun
1. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
(synonym) U, atomic number 92
(hypernym) metallic element, metal
(hyponym) uranium 235
(substance-holonym) uraninite, pitchblende
Noun
1. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
(synonym) U, atomic number 92
(hypernym) metallic element, metal
(hyponym) uranium 235
(substance-holonym) uraninite, pitchblende
| hEnglish - advanced version |
uranium
uranium
\u*ra"ni*um\ (?), n. [nl., from uranus the planet. see uranus.] (chem.) 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. [
uranium
n : a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons [syn: u, atomic number 92]
uranium
symbol: u atomic number: 92 atomic weight: (231) white radioactive metallic element belonging to the actinoids. three natural isotopes, u-238, u-235 and u-234. uranium-235 is used as the fuel for nuclear reactors and weapons. discovered by martin h. klaproth in 1789.
-- elements
similar words(3)
uranium 235
uranium ore
uranium 238
uranium
\u*ra"ni*um\ (?), n. [nl., from uranus the planet. see uranus.] (chem.) 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. [
uranium
n : a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons [syn: u, atomic number 92]
uranium
symbol: u atomic number: 92 atomic weight: (231) white radioactive metallic element belonging to the actinoids. three natural isotopes, u-238, u-235 and u-234. uranium-235 is used as the fuel for nuclear reactors and weapons. discovered by martin h. klaproth in 1789.
-- elements
similar words(3)
uranium 235
uranium ore
uranium 238
| Concise English-Irish Dictionary v. 1.1 |
uranium
úráiniam
úráiniam
Uranium Definition from Science & Technology Dictionaries & Glossaries
| NRC Nuclear Energy Glossary |
Uranium
A radioactive element with the atomic number 92 and, as found in natural ores, an atomic weight of approximately 238. The two principal natural isotopes are uranium-235 (0.7 percent of natural uranium), which is fissile, and uranium-238 (99.3 percent of natural uranium), which is fissionable by fast neutrons and is fertile. Natural uranium also includes a minute amount of uranium-234.
A radioactive element with the atomic number 92 and, as found in natural ores, an atomic weight of approximately 238. The two principal natural isotopes are uranium-235 (0.7 percent of natural uranium), which is fissile, and uranium-238 (99.3 percent of natural uranium), which is fissionable by fast neutrons and is fertile. Natural uranium also includes a minute amount of uranium-234.
| EIA Energy Glossary |
Uranium (U)
A heavy, naturally radioactive, metallic element (atomic number 92). Its two principally occurring isotopes are uranium-235 and uranium-238. Uranium-235 is indispensable to the nuclear industry because it is the only isotope existing in nature, to any appreciable extent, that is fissionable by thermal neutrons. Uranium-238 is also important because it absorbs neutrons to produce a radioactive isotope that subsequently decays to the isotope plutonium-239, which also is fissionable by thermal neutrons.
A heavy, naturally radioactive, metallic element (atomic number 92). Its two principally occurring isotopes are uranium-235 and uranium-238. Uranium-235 is indispensable to the nuclear industry because it is the only isotope existing in nature, to any appreciable extent, that is fissionable by thermal neutrons. Uranium-238 is also important because it absorbs neutrons to produce a radioactive isotope that subsequently decays to the isotope plutonium-239, which also is fissionable by thermal neutrons.
Forward costs (uranium)
The operating and capital costs that will be incurred in any future production of uranium from in-place reserves. Included are costs for labor, materials, power and fuel, royalties, payroll taxes, insurance, and general and administrative costs that are dependent upon the quantity of production and, thus, applicable as variable costs of production. Excluded from forward costs are prior expenditures, if any, incurred for property acquisition, exploration, mine development, and mill construction, as well as income taxes, profit, and the cost of money. Note: By use of forward costing, estimates of reserves for ore deposits in differing geological settings can be aggregated and reported as the maximum amount that can theoretically be extracted to recover the specified costs of uranium oxide production under the listed forward cost categories.
Nonconventional plant (uranium)
A facility engineered and built principally for processing of uraniferous solutions that are produced during in situ leach mining, from heap leaching, or in the manufacture of other commodities, and the recovery, by chemical treatment in the plant's circuits, of uranium from the processing solutions.
Speculative resources (uranium)
Uranium in addition to Estimated Additional Resources (EAR) that is thought to exist, mostly on the basis of indirect evidence and geological extrapolations, in deposits discoverable with existing exploration techniques. The locations of deposits in this category can generally be specified only as being somewhere within given regions or geological trends. The existence and size of such deposits are speculative. The estimates in this category are less reliable than estimates of EAR. SR corresponds to DOE's Possible Potential Resources plus Speculative Potential Resources categories.
Spot market (uranium)
Buying and selling of uranium for immediate or very near-term delivery. It typically involves transactions for delivery of up to 500,000 pounds U3O8 within a year of contract execution.
| Mineralogy Database |
| Energy Glossary |
URANIUM
A radioactive element, found in ores, of which atoms can be split to create energy.
A radioactive element, found in ores, of which atoms can be split to create energy.
| Chemistry of the Elements |
Uranium
Name: uranium
Symbol: U
Atomic number: 92
Atomic weight: 238.0289 (1) g m
Group in periodic table:
Group name: Actinoid
Period in periodic table: 7 (actinoid)
Block in periodic table: f-block
CAS registry ID: 7440-61-1
Uranium is of great interest because of its application to nuclear power and nuclear weapons. Uranium contamination is an emotive environmental problem. It is not particularly rare and is more common than beryllium or tungsten for instance.
Name: uranium
Symbol: U
Atomic number: 92
Atomic weight: 238.0289 (1) g m
Group in periodic table:
Group name: Actinoid
Period in periodic table: 7 (actinoid)
Block in periodic table: f-block
CAS registry ID: 7440-61-1
Uranium is of great interest because of its application to nuclear power and nuclear weapons. Uranium contamination is an emotive environmental problem. It is not particularly rare and is more common than beryllium or tungsten for instance.
Uranium Definition from Entertainment & Music Dictionaries & Glossaries
| English to Federation-Standard Golic Vulcan |
Uranium
shu-tukh
shu-tukh
Uranium Definition from Medicine Dictionaries & Glossaries
Uranium Definition from Business & Finance Dictionaries & Glossaries
| Company Info: Ticker, Name, Description |
URMP
URANIUM POWER CORP
Exchange: OTCBB
Not Available
URANIUM POWER CORP
Exchange: OTCBB
Not Available
Uranium Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Uranium
Uranium is a white/black metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and electrons, 6 of them valence electrons. It can have between 141 and 146 neutrons, with 143 and 146 in its most common isotopes. Uranium has the highest atomic weight of the naturally occurring elements (see plutonium). Uranium is approximately 70% more dense than lead and is weakly radioactive. It occurs naturally in low concentrations (a few parts per million) in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite (see uranium mining).
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