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lanthanide
[ lan-thuh-nahyd, -nid ]
noun
, Chemistry.
- any element of the lanthanide series.
lanthanide
/ ˈlænθəˌnaɪd; ˈlænθəˌnɒn /
noun
- any element of the lanthanide series Also calledrare earthrare-earth element
lanthanide
/ lăn′thə-nīd′ /
- Any of a series of 15 naturally occurring metallic elements. The lanthanides include elements having atomic numbers 57 (lanthanum) through 71 (lutetium). They are grouped apart from the rest of the elements in the Periodic Table because they all behave in a similar way in chemical reactions.
- Also called rare-earth element
- See Periodic Table
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Word History and Origins
Origin of lanthanide1
First recorded in 1925–30; lanthan(um) + -ide ( def )
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Word History and Origins
Origin of lanthanide1
C19: from lanthanum + -ide
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Example Sentences
Look in the second row from the bottom of most periodic tables, and you’ll find the lanthanides, split off from an archive of elements that doesn’t know what to do them.
From Popular-Science
The lanthanides are a close-knit bunch that are hard to distinguish from each other because of their similar colors and properties.
From Popular-Science
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