adj.胎盘的；胎座的
n.有胎盘哺乳动物
Capsule included in calyx, septicidal, valves separating from wide placental axis. 蒴果内藏于花萼，室间开裂，裂爿从宽分开胎盘的轴。
用作名词 (n.)Sloths and their relatives branched off from all other placental mammals about 100 million years ago. 树懒及其亲缘大约在一亿年前与其它的胎盘哺乳动物分道扬镳。
胎盘形成前的
胎盘后的
胎盘下的
子宫胎盘的
