allantois是什么意思
2023-11-26 14:38:17
allantois
n. 尿膜；尿囊
形容词：allantoic 名词复数：allantoides
英英释义
Noun
- the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals)