fermium

noun
fer·​mi·​um | \ ˈfer-mē-əm How to pronounce fermium (audio) , ˈfər- How to pronounce fermium (audio) \

Definition of fermium

: a radioactive metallic element produced artificially (as by bombardment of plutonium with neutrons) — see Chemical Elements Table

Examples of fermium in a Sentence

Recent Examples on the Web The golden ratio is the metallic mean between 1 and 2, the silver ratio represents the metallic mean between 2 and 3, and so forth, all the way to the fermium ratio (between 100 and 101—I just used the matching chemical element) and beyond. Caroline Delbert, Popular Mechanics, "The Golden Ratio Is Cool, but Could We Interest You in the Silver Ratio?," 30 Jan. 2020

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

First Known Use of fermium

1955, in the meaning defined above

History and Etymology for fermium

Enrico Fermi

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Time Traveler for fermium

Time Traveler

The first known use of fermium was in 1955

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Statistics for fermium

Last Updated

6 Feb 2020

Cite this Entry

“Fermium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fermium. Accessed 22 Feb. 2020.

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More Definitions for fermium

fermium

noun
fer·​mi·​um | \ ˈfer-mē-əm How to pronounce fermium (audio) , ˈfər- How to pronounce fermium (audio) \

Medical Definition of fermium

: a radioactive metallic element artificially produced (as by bombardment of plutonium with neutrons) symbol Fm — see Chemical Elements Table

More from Merriam-Webster on fermium

Britannica.com: Encyclopedia article about fermium

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