| 释义 |
placenta/pləˈsentə/n. (pl. placentae /-ti:/ or placentas) 1 a flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the foetus through the umbilical cord and expelled after birth 胎盘 2 (in flowers) part of the ovary wall carrying the ovules. (花的)胎座 □ placental adj.[Latin from Greek plakous -ountos ‘flat cake’, from the root of plax plakos ‘flat plate’] |