quartic quartful • quartic polynomial · · · Info · Definitions · Synonyms · Characters · · quartic · · Text Latin · · Script 7 · · Length 3 · · Syllables Definitions · · · (noun) an algebraic equation of the fourth degree. Synonyms: biquadrate, biquadratic, fourth power. · · Noun Definition 1 Synonyms · · · biquadrate · · Synonym 1 biquadratic · · Synonym 2 fourth power · · Synonym 3 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 q latin small letter q U+0071 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075