脱だつ落らく膜まく

noun

decidua

Anatomical term for the modified uterine lining that forms during pregnancy and is shed after birth.

• 脱だつ落らく膜まくは妊にん娠しんの維い持じに重じゅう要ような役やく割わりを果はたす。

  The decidua plays an important role in maintaining pregnancy.