Submitted by György Chityil ... on Sat, 01/20/2018 - 01:10 Hierarchy: NounDescription: {{organic compound}} The acetylenic carboxylic acid ''2-butynoic acid'' CH<sub>3</sub>-C?C-COOHNgram: tetrolic acidNgram Text: tetrolic acidSource: WiktionaryIssue: 0Wiktionary tag: organic compoundNgram Count: 2