chorion
cho·rion
noun
1.
outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals)
Origin
From Late Latin chorion, from Ancient Greek χόριον (khórion, “membrane surrounding the fetus, afterbirth”).
Phrases
- chorion frondosum
- chorion laeve
- monochorionic twin
Related words
Broader terms
Parts
Part of
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.