acrolein acrogynous • acrolith · · · Info · Definitions · Synonyms · Characters · · acrolein · · Text Latin · · Script 8 · · Length 4 · · Syllables Definitions · · · (noun) a pungent colorless unsaturated liquid aldehyde made from propene. Synonyms: propenal. · · Noun Definition 1 Synonyms · · · propenal · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072