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placenta

noun [C]
 
 
/pləˈsen.tə/ US  /-t̬ə/ (plural placentas, plural placentae /-tiː/ ) specialized

Definition

the temporary organ that feeds a foetus (= developing baby) inside its mother's wombSexual and reproductive organs
(Definition of placenta noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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