placenta
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
compare afterbirthTopics Life stagesc2胎盘 词源late 17th cent.: from Latin, from Greek plakous, plakount- ‘flat cake’, based on plax, plak- ‘flat plate’.