regression curve regression coefficient • regression equation · · · Info · Definitions · Synonyms · Characters · · regression curve · · Text Common · · Latin · · Scripts 16 · · Length 4 · · Syllables Definitions · · · (noun) a smooth curve fitted to the set of paired data in regression analysis; for linear regression the curve is a straight line. Synonyms: regression line, regression curve. · · Noun Definition 1 Synonyms · · · regression line · · Synonym 1 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075 v latin small letter v U+0076