详细解释:n. 胎盘, 胎座
【化】 胎盘
【医】 胎盘
词型变化：
名词复数:placentas形容词:placental英语解释：
名词 placenta:
that part of the ovary of a flowering plant where the ovules formthe vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus例句：
Formation of a placenta in the uterus.胎盘形成胎盘在 * 中的形成过程