fetal_membrane has definitions from the fields of botany,anatomy,zoology,embryology
1
[ noun ] (botany,anatomy,zoology,embryology) any membrane that functions for the protection or nourishment of respiration or excretion of a developing fetus
2
[ noun ] (botany,anatomy,zoology,embryology) the inner embryonic membrane of higher vertebrates (especially when covering the head at birth)

Related terms

membrane placenta fetus

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