ricinoleic acid ricinoleic • ricinolein · · · Info · Definitions · Characters · · ricinoleic acid · · Text Common · · Latin · · Scripts 15 · · Length 7 · · Syllables Definitions · · · (noun) an oily fatty acid found in castor oil and used in soap. Synonyms: ricinoleic acid. · · Noun Definition 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 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