Submitted by György Chityil ... on Sat, 01/20/2018 - 01:10 Hierarchy: NounDescription: {{organic chemistry}} Any heterohelicene containing at least one nitrogen and one sulfur heteroatomsNgram: thiaazaheliceneNgram Text: thiaazaheliceneSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryNgram Count: 1