placenta /plə-senˈtə/

1. In mammals, the flattened structure formed by the intimate union of the allantois and chorion with the uterine wall of the mother, serving for the respiration and nutrition of the growing young (zoology)
2. The part of the ovary of a flowering plant that bears the ovules (botany)
3. Any mass of tissue bearing sporangia or spores

placenˈtal adjective noun

A placental mammal

Placentalia /plas-ən-tāˈli-ə/ plural noun

Eutheria, the subclass of placental mammals

placentāˈtion noun

The arrangement and mode of attachment of placentae or of placenta and fetus

placentˈiform adjective

Cake-shaped

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