Meanings (ES + gloss)
corion
The protective and nutritive membrane in higher vertebrates that attaches the fetus to the uterus.
2002, Rovert E. A. Stewart, Barbara E. Stewart, Female Reproductive Systems, entry in Encyclopedia of Marine Mammals, page 425, The allantois fuses with the chorion, forming a smal…
In this illustration, some license is taken, since the amnion is shown as still separate from the chorion; this is done to illustrate the process of apposition of the amniotic sac…
Phrases