English-Thai Dictionary

uranium

N ยูเรเนียม  ธาตุ โลหะ ที่ มี กัมมันตรังสี  ใช้ ผลิต พลังงานปรมา ณู  yu-re-niam

 

Webster's 1828 Dictionary

URANIUM

n.[Gr. heaven, or a planet so called. ] A metal discovered in 1789 by Klaproth, in the mineral called pechblend. It is occasionally found native in uran-ocher and uran-mica; but more generally it is obtained from pechblend, in which it exists with iron, copper, lead, and sometimes with arsenic, cobalt and zink.

 

Webster's 1913 Dictionary

URANIUM

U *ra "ni *um, n. Etym: [NL. , from Uranus the planet. See Uranus. ](Chem. )

 

Defn: 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.

 

New American Oxford Dictionary

uranium

u ra ni um |yo͝oˈrānēəm juˈreɪniəm | ▶noun the chemical element of atomic number 92, a gray, dense radioactive metal used as a fuel in nuclear reactors. (Symbol: U ) Uranium is a chemically reactive metal belonging to the actinide series. Becquerel discovered radioactivity in uranium in 1896, and its capacity to undergo fission led to its use as a source of energy, though the fissile isotope, uranium-235, has to be separated from the more common uranium-238 before it can be used in nuclear weapons. The atom bomb exploded over Hiroshima in 1945 contained uranium-235. ORIGIN late 18th cent.: modern Latin, from Uranus + -ium .

 

Oxford Dictionary

uranium

uranium |jʊˈreɪnɪəm | ▶noun [ mass noun ] the chemical element of atomic number 92, a dense grey radioactive metal used as a fuel in nuclear reactors. (Symbol: U ) Uranium is a chemically reactive metal belonging to the actinide series. Becquerel discovered radioactivity in uranium in 1896, and its capacity to undergo fission led to its use as a source of energy, though the fissile isotope, uranium-235, has to be separated from the more common uranium-238 before it can be used in nuclear weapons. The atom bomb exploded over Hiroshima in 1945 contained uranium-235. ORIGIN late 18th cent.: modern Latin, from Uranus: compare with tellurium .

 

French Dictionary

uranium

uranium n. m. nom masculin Symbole U (s ’écrit sans point ). Métal radioactif naturel utilisé dans les usines nucléaires. : Les bombes atomiques ont été fabriquées avec de l ’uranium. Prononciation Le dernier u se prononce o, [yranjɔm ]; le mot rime avec gomme

 

Sanseido Wisdom Dictionary

uranium

u ra ni um /ju (ə )réɪniəm /名詞 U 〘化 〙ウラニウム, ウラン 〘放射性金属元素; ｟記号 ｠U 〙.