nobelium
noun
no·bel·i·um
nō-ˈbe-lē-əm 
: a radioactive metallic element produced artificially see Chemical Elements Table
Examples of nobelium in a Sentence
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This produces both nobelium and element 89, actinium (Ac), which is found at the opposite end of the same elemental group as nobelium on the periodic table.
—
David Szondy
august 27, New Atlas, 27 Aug. 2025
Although Swedish researchers later had to retract their report of a 10-minute half-life, in 1992, the International Union of Pure and Applied Chemistry officially bestowed the name nobelium since it had been used in the literature for decades.
—Allison Futterman, Discover Magazine, 17 Sep. 2022
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David Szondy
august 27, New Atlas, 27 Aug. 2025
Although Swedish researchers later had to retract their report of a 10-minute half-life, in 1992, the International Union of Pure and Applied Chemistry officially bestowed the name nobelium since it had been used in the literature for decades.
—Allison Futterman, Discover Magazine, 17 Sep. 2022
Cite this Entry
“Nobelium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nobelium. Accessed 3 Nov. 2025.
Copy CitationKids Definition
nobelium
noun
no·bel·i·um
nō-ˈbel-ē-əm
: a radioactive metallic element produced artificially see element
Medical Definition
nobelium
noun
no·bel·i·um
nō-ˈbel-ē-əm
: a radioactive element produced artificially
—symbol No
see Chemical Elements Table
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