octadecanoic acid octadecanoic • octadecyl · · · Info · Definitions · Synonyms · Characters · · octadecanoic acid · · Text Common · · Latin · · Scripts 17 · · Length 8 · · Syllables Definitions · · · (noun) a waxy saturated fatty acid; occurs widely as a glyceride in animal and vegetable fats. Synonyms: stearic acid, octadecanoic acid. · · Noun Definition 1 Synonyms · · · stearic 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 t latin small letter t U+0074