¹ Source: wiktionary.com
Definition of Lanthanides
1. lanthanide [n] - See also: lanthanide
Medical Definition of Lanthanides
1. Those elements with atomic numbers 57-71 which closely resemble one another chemically and were once difficult to separate from one another. Synonym: rare earth elements. Origin: Lanthanum, first element of the series (05 Mar 2000)
Lexicographical Neighbors of Lanthanides
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