CHORIOALLANTOIC MEMBRANE

Pronunciation:			`kowreeow`alun'towik 'membreyn
WordNet Dictionary
	Definition:		[n]  very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois
	Synonyms:		chorioallantois
	See Also:		membrane, tissue layer
Medical Dictionary
	Definition:		The membrane in hen's eggs that helps chicken embryos get enough oxygen and calcium for development. The calcium comes from the egg shell.