General Medical Terms Lungs & Breathing

chorioallantoic membrane

Meaning of chorioallantoic membrane: The membrane in hens' eggs that helps chicken embryos get enough oxygen and calcium for development.

Definition of chorioallantoic membrane

The membrane in hens' eggs that helps chicken embryos get enough oxygen and calcium for development. The calcium comes from the egg shell.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.