n. (pl. tae /ti:/ or s) organ in the uterus of pregnant mammals nourishing the foetus through the umbilical cord and expelled after birth. o placental adj. [Greek, flat cake]
n. (pl. tae /ti:/ or s) organ in the uterus of pregnant mammals nourishing the foetus through the umbilical cord and expelled after birth. o placental adj. [Greek, flat cake]