arc tangent arctangent • arctation · · · Info · Definitions · Synonyms · Characters · · arc tangent · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) the inverse function of the tangent; the angle that has a tangent equal to a given number. Synonyms: arc tangent, arctangent, arctan, inverse tangent. · · Noun Definition 1 Synonyms · · · arctangent · · Synonym 1 arctan · · Synonym 2 inverse tangent · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074