Submitted by György Chityil ... on Fri, 01/19/2018 - 20:57 Hierarchy: NounDescription: {{inorganic chemistry}} a silicon analog of alkenes containing at least one silicon-silicon double bond.Ngram: sileneNgram Text: sileneSource: WiktionaryIssue: 0Wiktionary tag: inorganic chemistryNgram Count: 1