漿しょう尿にょう膜まく

noun

chorioallantois; chorioallantoic membrane

Anatomical term for the fused chorion and allantois in embryonic development; used in biology and medicine.

• 漿しょう尿にょう膜まくは鳥ちょう類るいや爬は虫ちゅう類るいの胚はいでガス交こう換かんに関かん与よする。

  The chorioallantois is involved in gas exchange in the embryos of birds and reptiles.