radius vector radius rod • radix graminis · · · Info · Definitions · Synonyms · Characters · · radius vector · · Text Common · · Latin · · Scripts 13 · · Length Definitions · · · (noun) a line connecting a satellite to the center of the body around which it is rotating. · · Noun Definition 1 (noun) a line connecting a point in space to the origin of a polar coordinate system. · · Noun Definition 2 Synonyms · · · radius · · Synonym 1 r · · Synonym 2 spoke · · Synonym 3 wheel spoke · · Synonym 4 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 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 v latin small letter v U+0076