sexagenary UK /ˌsɛksəˈd͡ʒiːnɹi/US /ˌsɛksəˈd͡ʒɛnəɹi/adjective 4noun 2forms 1 adjective4 •Of or related to the number sixty •Containing sixty years.The sexagenary cycle is formed by combining the twelve earthly branches representing the years of Jupiter's orbital cycle and the ten heavenly stems of the Shang-era week, stopping halfway through to reflect the pairing of yin and yang terms. •(no longer used) Synonym of sexagenarian: lasting or aged sixty years; sixty-year-old. •(no longer used) Synonym of sexagesimal: base-60. noun2 •(no longer used) Synonym of sexagenarian: a sixty-year-old. •(no longer used) Synonym of sexagesimal: base-60 numeration. formssexagenaries
