Webster's Revised Unabridged Dictionary · 1913

chorioallantois

chorioallantois , noun

a very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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