lutetium

noun
lu·​te·​tium | \ lü-ˈtē-sh(ē-)əm How to pronounce lutetium (audio) \

Definition of lutetium

: 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

First Known Use of lutetium

1907, in the meaning defined above

History and Etymology for lutetium

New Latin, from Latin Lutetia, ancient name of Paris

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The first known use of lutetium was in 1907

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Cite this Entry

“Lutetium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lutetium. Accessed 28 Feb. 2021.

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lutetium

noun
lu·​te·​tium
variants: also lutecium \ lü-​ˈtē-​sh(ē-​)əm How to pronounce lutetium (audio) \

Medical Definition of lutetium

: a metallic element of the rare-earth group symbol Lu — see Chemical Elements Table

More from Merriam-Webster on lutetium

Britannica.com: Encyclopedia article about lutetium

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