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francium

noun

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

Example Sentences

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

Word History

Etymology

New Latin, from France

First Known Use

1946, in the meaning defined above

Time Traveler
The first known use of francium was in 1946

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