单词	lanthanide
释义	lanthanide noun lan·​tha·​nide ˈlan(t)-thə-ˌnīd  variants or less commonly lanthanoid ˈlan(t)-thə-ˌnȯid  : any of the series of elements with increasing atomic numbers that begins with lanthanum or cerium and ends with lutetium see Periodic Table Example Sentences Recent Examples on the Web The first possibility is the evolution of a new OPEC-style organization with the power to control vital resources including silicon, copper, lithium, and lanthanides. Andrew Barron, Smithsonian, 20 Feb. 2018 Word History Etymology International Scientific Vocabulary First Known Use 1926, in the meaning defined above Medical Definition lanthanide noun lan·​tha·​nide ˈlan(t)-thə-ˌnīd  : any in a series of elements of increasing atomic numbers beginning with lanthanum (57) or cerium (58) and ending with lutetium (71)
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