-
- To save this word, you'll need to log in.
fermium
noun
fer·mi·um
ˈfer-mē-əm
ˈfər-
: 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, 30 Jan. 2020
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Word History
Etymology
Enrico Fermi
First Known Use
1955, in the meaning defined above
Dictionary Entries Near fermium
Cite this Entry
“Fermium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fermium. Accessed 18 Dec. 2024.
Kids Definition
fermium
noun
fer·mi·um
ˈfer-mē-əm
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-
: 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share