1. plural form of placenta; the organs that develop in the uterus during pregnancy to nourish the fetus
Usage: medical; biological
2. plural form of placenta; the parts of flowering plants where seeds are attached
Usage: botanical

Examples

• The veterinarian examined the placentae after the dog gave birth to her puppies.
• Multiple placentae were delivered following the birth of twins.
• The botanist studied the placentae of various flower species.
• Retained placentae can cause serious complications in mammals.
• The placentae showed signs of healthy development throughout the pregnancy.
• In some plants, the placentae are located along the walls of the ovary.