999英语网 英语单词
Allantois的音标发音
Allantois
英式发音：['lntuis]
美式发音
(noun.) the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals).
艾维斯编辑
(noun.) the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals).
艾维斯编辑