What is another word for chorioallantois?
Pronunciation: [kˈɔːɹɪˌə͡ʊlantwˌɑː] (IPA) 
Chorioallantois is a term used to describe a structure formed during the development of some egg-laying animals, such as birds and reptiles. This structure facilitates gas exchange and nutrient absorption between the embryo and the environment. In scientific literature, chorioallantois is often referred to as the chorioallantoic membrane or the CAM. Other synonyms for chorioallantois include the allantochorion, the choriovitelline membrane, and the allantois. These terms are used interchangeably to describe the same structure. Knowing these synonyms can be helpful when reading scientific articles, as different authors may use different terminology for the same structure.
