Er 1
noundomain: substance
Princeton WordNet [ver.3.1]
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EnglishDefinition
a trivalent metallic element of the rare earth group; occurs with yttrium
Synonyms
- erbium 1
a trivalent metallic element of the rare earth group; occurs with yttrium
- atomic number 68 1
a trivalent metallic element of the rare earth group; occurs with yttrium
