propenoic acid propenoic • propenonitrile · · · Info · Definitions · Synonyms · Characters · · propenoic acid · · Text Common · · Latin · · Scripts 14 · · Length 6 · · Syllables Definitions · · · (noun) an unsaturated liquid carboxylic acid used in the manufacture of acrylic resins. Synonyms: propenoic acid, acrylic acid. · · Noun Definition 1 Synonyms · · · acrylic acid · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072