thorium
noun
tho·ri·um
ˈthȯr-ē-əm 
: a radioactive metallic element that is obtained especially from monazite and is usually associated with rare earths see Chemical Elements Table
Examples of thorium in a Sentence
Recent Examples on the Web
These were accompanied by supposed paper records confirming it to be thorium and uranium.
—
Andrew Paul, Popular Science, 9 Jan. 2025
In this kind of reactor, thorium fluoride dissolves in molten salt in the reactor’s core.
—Emily Waltz, IEEE Spectrum, 30 Dec. 2024
Copenhagen Atomics is a startup in Copenhagen developing thorium reactors that use molten salt and will need lithium-7.
—Katie Fehrenbacher, Axios, 11 Dec. 2024
But first, researchers needed to pinpoint the exact amount of energy capable of exciting the thorium nucleus.
—Shi En Kim, Smithsonian Magazine, 23 Sep. 2024
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Andrew Paul, Popular Science, 9 Jan. 2025
In this kind of reactor, thorium fluoride dissolves in molten salt in the reactor’s core.
—Emily Waltz, IEEE Spectrum, 30 Dec. 2024
Copenhagen Atomics is a startup in Copenhagen developing thorium reactors that use molten salt and will need lithium-7.
—Katie Fehrenbacher, Axios, 11 Dec. 2024
But first, researchers needed to pinpoint the exact amount of energy capable of exciting the thorium nucleus.
—Shi En Kim, Smithsonian Magazine, 23 Sep. 2024
See all Example Sentences for thorium
Dictionary Entries Near thorium
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“Thorium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thorium. Accessed 20 Jan. 2025.
Copy CitationKids Definition
thorium
noun
tho·ri·um
ˈthōr-ē-əm
ˈthȯr-
: a radioactive metallic element see element
Medical Definition
thorium
noun
tho·ri·um
ˈthōr-ē-əm, ˈthȯr-
: a radioactive metallic element that occurs combined in minerals and is usually associated with rare earths
—symbol Th
see Chemical Elements Table
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