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noun

Definition of polonium 

: a radioactive metallic element that is similar chemically to tellurium and bismuth, occurs especially in pitchblende and radium-lead residues, and emits an alpha particle to form an isotope of lead — see Chemical Elements Table

Examples of polonium in a Sentence

Recent Examples on the Web

The killers of Alexander Litvinenko, who died of polonium poisoning in 2006, left a trail of radiation across London. The Economist, "A new Novichok poisoning in Britain," 5 July 2018 Russia has a track record: in London in 2006 its agents assassinated Alexander Litvinenko, another ex-spy, by slipping polonium into his tea. The Economist, "Conspiracy theories from, and about, Russia," 14 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polonium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of polonium

1898, in the meaning defined above

History and Etymology for polonium

New Latin, from Medieval Latin Polonia

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Dictionary Entries near polonium

Polonian

Polonism

Polonist

polonium

Polonius

polonization

polonize

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Time Traveler for polonium

The first known use of polonium was in 1898

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More Definitions for polonium

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polonium

noun
po·​lo·​ni·​um | \pə-ˈlō-nē-əm Neckline Illusion Dress Bridesmaid Dressystar Midi 3 Women's Lace Sleeves 4 Champagne Floral Elegant Dresses \

Medical Definition of polonium 

: a radioactive metallic element that is similar chemically to tellurium and bismuth, occurs especially in pitchblende and radium-lead residues, and emits an alpha particle to form an isotope of lead symbol Dresses Neckline 4 Champagne Sleeves Floral Midi Women's Lace Elegant Bridesmaid Dressystar 3 Dress Illusion Po — see Chemical Elements Table

More from Merriam-Webster on polonium

Britannica.com: Encyclopedia article about polonium

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