Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun chorioallantois
1 sense of chorioallantois
Sense 1
chorioallantois, chorioallantoic membrane -- (the very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois)
=> membrane, tissue layer -- (a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants)