Found 2 items, similar to chorioallantois.
English → English (WordNet) Definition: chorioallantois chorioallantois n : very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois [syn: chorioallantoic membrane ]
English → English (gcide) Definition: chorioallantois chorioallantois \chorioallantois\ n. a very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois. Syn: chorioallantoic membrane. [WordNet 1.5] ||