English

Definition of erbium noun from the Oxford Advanced Learner's Dictionary

 

erbium

 noun
noun
BrE BrE//ˈɜːbiəm//
 
; NAmE NAmE//ˈɜːrbiəm//
 
[uncountable] (symbol Er)
 
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a chemical element. Erbium is a soft silver-white metal. Word Origin mid 19th cent.: modern Latin, from (Ytt)erb(y), in Sweden, where it was first found. Compare with ytterbium.
See the Oxford Advanced American Dictionary entry: erbium