HyperDic: allantois

English > 1 sense of the word allantois:
NOUNanimalallantoisthe vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals)
English > allantois: 1 sense > noun 1, animal
MeaningThe vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals).
Categorymammal, mammalianAny warm-blooded vertebrate having the skin more or less covered with hair
Broaderfetal membraneAny membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus
Spanishalantoides
Catalanalantoides, al·lantoide, membrana al·lantoide
Adjectivesallantoicrelating to or characterized by an allantois

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