great circle great cerebral vein • great-circle chart · · · Info · Definitions · Characters · · great circle · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center. Synonyms: great circle. · · Noun Definition 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 r latin small letter r U+0072 t latin small letter t U+0074