Submitted by György Chityil ... on Fri, 01/19/2018 - 16:45 Hierarchy: NounDescription: {{organic compounds}} The aliphatic hydrocarbon 2-methylbutane; isomeric with pentane and neopentane.Ngram: isopentaneNgram Text: isopentaneSource: WiktionaryIssue: 0Wiktionary tag: organic compoundsNgram Count: 1