placentan.胎盘;胎座
Placental bed胎盘床
placental cure胎盘刮匙
placental rest胎盘残片
placental sign胎盘征
placental zone[医] 胎盘(附着)区
Placental scan胎盘扫描
placenta blood胎盘血
placental hook胎盘钩
placental site[医] 鞍坏疽(马)
Placenta aging胎盘老化
"all mammals except monotremes and marsupials are placental mammals"