lutetium
noun
lu·te·tium
lü-ˈtē-sh(ē-)əm 
: a metallic chemical element of the rare-earth group that has few practical applications but is sometimes used as a catalyst in cracking and as a radiation source for treatment of certain cancers see Chemical Elements Table
Examples of lutetium in a Sentence
Recent Examples on the Web
The new restrictions — which encompass the medium and heavy rare earth elements samarium, gadolinium, terbium, dysprosium, lutetium, scandium and yttrium — will require Chinese companies to secure special licenses to export the resources.
—
Dylan Butts, CNBC, 15 Apr. 2025
China's Ministry of Commerce said seven categories of medium and heavy rare earths, including samarium, gadolinium, terbium, dysprosium, lutetium, scandium and yttrium-related items would be on this list.
—John W. Dean, MSNBC Newsweek, 7 Apr. 2025
Rare-earth metals and elements such as lanthanum and lutetium are raw materials of which there are limited concentrated deposits, according to the U.S. Geological Survey.
—Mike Snider, USA TODAY, 1 Mar. 2025
Anchored at these target sites, the lutetium isotope then releases two types of radiation that aid in cancer treatment.
—Discover Magazine, 8 July 2024
See All Example Sentences for lutetium
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.
Dylan Butts, CNBC, 15 Apr. 2025
China's Ministry of Commerce said seven categories of medium and heavy rare earths, including samarium, gadolinium, terbium, dysprosium, lutetium, scandium and yttrium-related items would be on this list.
—John W. Dean, MSNBC Newsweek, 7 Apr. 2025
Rare-earth metals and elements such as lanthanum and lutetium are raw materials of which there are limited concentrated deposits, according to the U.S. Geological Survey.
—Mike Snider, USA TODAY, 1 Mar. 2025
Anchored at these target sites, the lutetium isotope then releases two types of radiation that aid in cancer treatment.
—Discover Magazine, 8 July 2024
See All Example Sentences for lutetium
Cite this Entry
“Lutetium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lutetium. Accessed 24 Apr. 2025.
Copy CitationKids Definition
lutetium
noun
lu·te·tium
lü-ˈtē-sh(ē-)əm
: a soft metallic chemical element see element
Medical Definition
lutetium
noun
lu·te·tium
variants
also lutecium
: a metallic element of the rare-earth group
—symbol Lu
see Chemical Elements Table
Love words? Need even more definitions?
Merriam-Webster unabridged
Share