Submitted by György Chityil ... on Fri, 01/19/2018 - 20:34 Hierarchy: NounDescription: {{chemistry|astronomy}} The study of the chemical composition of stars and outer spaceNgram: astrochemistryNgram Text: astrochemistrySource: WiktionaryIssue: 0Wiktionary tag: chemistryastronomyNgram Count: 1