pla·cen·ta
noun/pləˈsentə/
/pləˈsentə/
(usually the placenta)
(anatomy)- an organ inside the uterus of a pregnant woman or animal to which the baby is attached and that is necessary to feed and protect the baby
胎盘 Word Originlate 17th cent.: from Latin, from Greek plakous, plakount- ‘flat cake’, based on plax, plak- ‘flat plate’.