hormone secreted by the corpus luteum during the last days of pregnancy; relaxes the pelvic ligaments and prepares the uterus for labor
relaxin详细解释
re.lax.in
n.（名词） A female hormone secreted by the corpus luteum that helps soften the cervix and relax the pelvic ligaments in childbirth. 耻骨松弛激素：由身体卵巢分泌的雌性荷尔蒙，能帮助生产时放松子宫颈并且放松骨盆韧带
