Allantochorion
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 the allantochorion is a fusion of the chorion with the allantois and ensures gas exchange of the fetus.
"Over the mouths of uterine glands, pig allantochorion is not directly attached to the endometrial epithelium but forms areolae, where uterine gland secretions are absorbed by trophoblast cells."
Example
More examples"Over the mouths of uterine glands, pig allantochorion is not directly attached to the endometrial epithelium but forms areolae, where uterine gland secretions are absorbed by trophoblast cells."
Etymology
From allanto- + chorion.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.