Submitted by György Chityil ... on Fri, 01/19/2018 - 23:58 Hierarchy: NounDescription: {{organic compound}} Either of two diols derived from propane, but especially ''1,2-propanediol'' known as propylene glycolNgram: propanediolNgram Text: propanediolSource: WiktionaryIssue: 0Wiktionary tag: organic compoundNgram Count: 1