- allantois as a noun:
- 1
allantois
noun
1 allantois
The vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals).
Polish: omocznia
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noun
The vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals).
Polish: omocznia
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