Definition of “placenta” - English Dictionary

“placenta” in British English

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placentanoun [ C ]

uk /pləˈsen.tə/ us /pləˈsen.t̬ə/ plural placentas or placentae uk /-tiː/ us specialized

the temporary organ that feeds a foetus (= developing baby) inside its mother's womb

(Definition of “placenta” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“placenta” in American English

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placentanoun [ C ]

us /pləˈsen·tə/ plural placentas

biology an organ that develops inside the uterus of a pregnant woman or animal and provides food for the developing baby

placental
adjective [ not gradable ] us /pləˈsen·təl/

(Definition of “placenta” from the Cambridge Academic Content Dictionary © Cambridge University Press)