lanthanide

noun lan·tha·nide \ˈlan(t)-thə-ˌnīd\

Definition of LANTHANIDE

: any of the series of elements with increasing atomic numbers that begins with lanthanum or cerium and ends with lutetium — see periodic table table

lan·tha·nide also lan·tha·noid \-ˌnȯid\

International Scientific Vocabulary

First Known Use: 1926

Medical Dictionary

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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