primary sex characteristic primary sex character • primary sexual characteristic · · · Info · Definitions · Synonyms · Characters · · primary sex characteristic · · Text Common · · Latin · · Scripts 26 · · Length 9 · · Syllables Definitions · · · (noun) the genetically determined sex characteristics bound up with reproduction (genitals and organs of reproduction). Synonyms: primary sex characteristic, primary sexual characteristic, primary sex character. · · Noun Definition 1 Synonyms · · · primary sexual characteristic · · Synonym 1 primary sex character · · Synonym 2 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 m latin small letter m U+006D 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 x latin small letter x U+0078 y latin small letter y U+0079