sacral plexus sacral nerve • sacral vein · · · Info · Definitions · Synonyms · Characters · · sacral plexus · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) a nerve plexus formed by the 4th and 5th lumbar and 1st, 2nd, 3rd sacral nerves; supplies the pelvic region and lower limbs. Synonyms: sacral plexus, plexus sacralis. · · Noun Definition 1 Synonyms · · · plexus sacralis · · 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 l latin small letter l U+006C p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075 x latin small letter x U+0078