erbium

noun er·bi·um \ˈər-bē-əm\

Definition of ERBIUM

: a metallic element of the rare-earth group — see element table

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New Latin, from Ytterby, Sweden

First Known Use: 1843

Medical Dictionary

noun er·bi·um \ˈər-bē-əm\

: a metallic element of the rare-earth group that occurs with yttrium—symbol Er; see element table

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