fermium
noun
fer·mi·um
ˈfer-mē-əm 
ˈfər-
ˈfər-
: a radioactive metallic element produced artificially (as by bombardment of plutonium with neutrons) see Chemical Elements Table
Examples of fermium in a Sentence
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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, 30 Jan. 2020
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Caroline Delbert, Popular Mechanics, 30 Jan. 2020
Cite this Entry
“Fermium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fermium. Accessed 28 Feb. 2025.
Copy CitationKids Definition
fermium
noun
fer·mi·um
ˈfer-mē-əm
ˈfər-
ˈfər-
: a radioactive metallic element artificially produced (as by bombardment of plutonium with neutrons) see element
Medical Definition
fermium
noun
fer·mi·um
ˈfer-mē-əm
ˈfər-
ˈfər-
: a radioactive metallic element artificially produced (as by bombardment of plutonium with neutrons)
—symbol Fm
see Chemical Elements Table
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