exponential equation exponential decay • exponential expression · · · Info · Definitions · Characters · · exponential equation · · Text Common · · Latin · · Scripts 20 · · Length 8 · · Syllables Definitions · · · (noun) an equation involving exponential functions of a variable. Synonyms: exponential equation. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 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 p latin small letter p U+0070 q latin small letter q U+0071 t latin small letter t U+0074 u latin small letter u U+0075 x latin small letter x U+0078