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Definition of ytterbium noun from the Oxford Advanced American Dictionary

 

ytterbium

 noun
noun
NAmE//ɪˈtərbiəm//
 
[uncountable] (symbol Yb)
 
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a chemical element. Ytterbium is a silver-white metal used to make steel stronger and in some X-ray machines.
See ytterbium in the Oxford Advanced Learner's Dictionary
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