: a species of atom characterized by the constitution of its nucleus and hence by the number of protons, the number of neutrons, and the energy content
Examples of nuclide in a Sentence
Recent Examples on the Web
As the reactor continued to burn, releasing radioactive nuclides into the air, the Soviet authorities did not tell people to stay indoors.
—
Franziska Exeler, The Dial, 18 Feb. 2025
Dating the Tools The team used a dating method based on cosmogenic nuclides to determine the date of the tools from the Korolevo site.
—Jack Knudson, Discover Magazine, 12 Mar. 2024
Related article Gene that protected humans 5,000 years ago may be linked to debilitating modern disease
The shower of radiation as cosmic rays interact with the atmosphere can penetrate rock, creating cosmogenic nuclides, or isotopes.
—Katie Hunt, CNN, 6 Mar. 2024
Storage tanks at the site, which hold water treated by a nuclide-removal facility called ALPS, are forecast to be full by mid-2022, and space for building more is scarce.
—Aya Takada, Bloomberg.com, 29 Apr. 2020
Water treatment is happening at large-scale facilities that have been built onsite, including a multi-nuclide removal facility.
—William Steel, Ars Technica, 11 May 2018
The half-life of cesium-137, one of the most harmful nuclides released during the accident, is approximately thirty years.
—Serhii Plokhy, Time, 26 Apr. 2018
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Franziska Exeler, The Dial, 18 Feb. 2025
Dating the Tools The team used a dating method based on cosmogenic nuclides to determine the date of the tools from the Korolevo site.
—Jack Knudson, Discover Magazine, 12 Mar. 2024
Related article Gene that protected humans 5,000 years ago may be linked to debilitating modern disease
The shower of radiation as cosmic rays interact with the atmosphere can penetrate rock, creating cosmogenic nuclides, or isotopes.
—Katie Hunt, CNN, 6 Mar. 2024
Storage tanks at the site, which hold water treated by a nuclide-removal facility called ALPS, are forecast to be full by mid-2022, and space for building more is scarce.
—Aya Takada, Bloomberg.com, 29 Apr. 2020
Water treatment is happening at large-scale facilities that have been built onsite, including a multi-nuclide removal facility.
—William Steel, Ars Technica, 11 May 2018
The half-life of cesium-137, one of the most harmful nuclides released during the accident, is approximately thirty years.
—Serhii Plokhy, Time, 26 Apr. 2018
Cite this Entry
“Nuclide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nuclide. Accessed 4 Nov. 2025.
Copy CitationKids Definition
nuclide
noun
nu·clide
ˈn(y)ü-ˌklīd 
: a kind of atom marked by the number of protons and neutrons and by the amount of energy contained in its nucleus
Medical Definition
nuclide
noun
nu·clide
ˈn(y)ü-ˌklīd
: a species of atom characterized by the constitution of its nucleus and hence by the number of protons, the number of neutrons, and the energy content
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