Submitted by György Chityil ... on Fri, 01/19/2018 - 22:14 Hierarchy: NounDescription: {{inorganic compound}} erbium oxide Er<sub>2</sub>O<sub>3</sub>; Discovered in 1843, by Carl Gustaf Mosander.Ngram: erbiaNgram Text: erbiaSource: WiktionaryIssue: 0Wiktionary tag: inorganic compoundNgram Count: 1
