lanthanide
(lan-tha-nide)
3 syllables
Definition
noun. a group of 15 chemical elements in the periodic table from lanthanum to lutetium.
Example Sentence
Elements 57 to 71 are called the lanthanide series of the periodic table of elements.
More Example Sentences
These elements are important in modern technology.
Synonyms
rare earth element; f-block element
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lanthanide
