urethral sphincter urethral orifice • urethrameter · · · Info · Definitions · Synonyms · Characters · · urethral sphincter · · Text Common · · Latin · · Scripts 18 · · Length 5 · · Syllables Definitions · · · (noun) a striated sphincter muscle that constricts the urethra. Synonyms: urethral sphincter, musculus sphincter urethrae. · · Noun Definition 1 Synonyms · · · musculus sphincter urethrae · · 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 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E p latin small letter p U+0070 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