osculating circle osculate • osculation · · · Info · Definitions · Synonyms · Characters · · osculating circle · · Text Common · · Latin · · Scripts 17 · · Length 6 · · Syllables Definitions · · · (noun) the circle that touches a curve (on the concave side) and whose radius is the radius of curvature. Synonyms: circle of curvature, osculating circle. · · Noun Definition 1 Synonyms · · · circle of curvature · · Synonym 1 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 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 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075