re·lax·in /rɪˈlæksən/ 鬆弛□; 弛緩素; 恥骨鬆弛激素
re·lax·in /rɪˈlæksən/ 名詞
relaxin n : hormone secreted by the corpus luteum during the last days of pregnancy; relaxes the pelvic ligaments and prepares the uterus for labor