polonium

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po·lo·ni·um

 (pə-lō′nē-əm)
n. Symbol Po
A radioactive metallic element, occurring naturally in small quantities as a product of radium disintegration and produced synthetically by bombarding bismuth or lead with neutrons. Most isotopes decay by alpha-particle emission; the most stable are Po-208 and Po-209, with half-lives of 2.9 years and 102 years, respectively. Po-210, with a half-life of 138.4 days, is the most readily available isotope and is extremely toxic. Atomic number 84; melting point 254°C; boiling point 962°C; specific gravity 9.20; valence 2, 4, 6. See Periodic Table.

[From Medieval Latin Polōnia, Poland (the native country of Marie Curie, who discovered this element along with her husband Pierre).]

polonium

(pəˈləʊnɪəm)
n
(Elements & Compounds) a very rare radioactive element that occurs in trace amounts in uranium ores. The isotope polonium-210 is produced artificially and is used as a lightweight power source in satellites and to eliminate static electricity in certain industries. Symbol: Po; atomic no: 84; half-life of most stable isotope, 209Po: 103 years; valency: –2, 0, 2, 4, or 6; relative density (alpha modification): 9.32; melting pt: 254°C; boiling pt: 962°C
[C19: New Latin, from Medieval Latin Polōnia Poland; named in honour of the Polish nationality of its discoverer, Marie Curie]

po•lo•ni•um

(pəˈloʊ ni əm)

n.
a radioactive chemical element discovered by Pierre and Marie Curie in 1898. Symbol: Po; at. no.: 84; at. wt.: about 210.
[< French, =polon- (< Medieval Latin Polonia Poland) + -ium -ium2]

po·lo·ni·um

(pə-lō′nē-əm)
Symbol Po A very rare, naturally radioactive, silvery-gray or black metallic element. It is produced in extremely small amounts by the radioactive decay of radium or the bombardment of bismuth or lead with neutrons. Atomic number 84. See Periodic Table.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.polonium - a radioactive metallic element that is similar to tellurium and bismuthpolonium - a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Translations
полоний
polonium
polonium
polonio
poloonium
polonium
polonij
polónium
pólon
ポロニウム
polonium
polonis
polonium
polon
poloniu
polonium
polonij
polonium
polonyum

polonium

[pəˈləʊnɪəm] Npolonio m

polonium

n (Chem) → Polonium nt
References in periodicals archive ?
Swiss, French and Russian forensics experts had taken samples from Arafat's body last year after an al Jazeera documentary claimed that his clothes showed high amounts of deadly polonium 210.
PARIS (TAP) - French forensic experts investigating the death of the late Palestinian leader Yasser Arafat have concluded that he died of natural causes, ruling out polonium 210 poisoning, according to reports.
Measurements of Polonium 210 and other radioactive substances taken from biological samples of the body are consistent with a natural environmental origin.
The report says: "Several samples containing body fluid stains (blood and urine) contained higher unexplained polonium 210 activities than the reference samples.
Published on Tuesday, 15 October 2013 10:48 Al Jazeera The Lancet One of the world's leading medical journals has supported the possibility that Yasser Arafat, the longtime Palestinian leader, was poisoned with theradioactive element polonium 210.
Police now want forensic scientists to search for rare poisons - including polonium 210, used to kill former KGB agent Alexander Litvinenko.
She said: "Only a review of the evidence in an open, independent court in Britain will get to the truth about who poisoned his tea with radioactive polonium 210 on November 1, 2006, as well as how and why.
Moscow-based Andrei Lugovoy is wanted for the "deliberate poisoning" of Mr Litvinenko, who died from a fatal dose of the radioactive agent Polonium 210.
Mr Litvinenko died in hospital in London last November, after being poisoned with radioactive agent Polonium 210.
The Foundation will also seek to assist the victims of exposure to Polonium 210 to claim compensation, state benefits and legal redress, but it will not make payments to victims.
British police investigators from Scotland Yard have been in Russia attempting to interview witnesses and suspects in the case of Alexander Litvinenko, who died in a British hospital on November 23 from radiation poisoning caused by polonium 210.
But his work was cut short when he was poisoned with radioactive polonium 210 in London.