francium

noun
fran·​ci·​um | \ ˈfran(t)-sē-əm How to pronounce francium (audio) \

Definition of francium

: a short-lived radioactive element of the alkali-metal group occurring naturally as a disintegration product of actinium and also produced artificially — see Chemical Elements Table

Examples of francium in a Sentence

Recent Examples on the Web Perey, being French, decided to call it francium instead. Neima Jahromi, The New Yorker, "The Histories Hidden in the Periodic Table," 27 Dec. 2019

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

First Known Use of francium

1946, in the meaning defined above

History and Etymology for francium

New Latin, from France

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Time Traveler for francium

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The first known use of francium was in 1946

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Cite this Entry

“Francium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/francium. Accessed 18 Apr. 2021.

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More Definitions for francium

francium

noun
fran·​ci·​um | \ ˈfran(t)-sē-əm How to pronounce francium (audio) \

Medical Definition of francium

: a radioactive element of the alkali-metal group discovered as a disintegration product of actinium and obtained artificially by the bombardment of thorium with protons symbol Fr — see Chemical Elements Table

More from Merriam-Webster on francium

Britannica.com: Encyclopedia article about francium

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