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/ˈɜː.bɪ.əm/ · noun
A chemical element (symbol Er) with atomic number 68: a silvery-white metal, in nature always found in combination with other elements..
Use erbium when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Erbium means A chemical element (symbol Er) with atomic number 68: a silvery-white metal, in nature always found in combination with other elements..
Common synonyms include atomic number 68, er.
The opposite depends on the specific sense.
Use erbium where its definition matches the intended context.
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