| / English Dictionary |
CHORION
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals)
Classified under:
Hypernyms ("chorion" is a kind of...):
sac (a structure resembling a bag in an animal)
Meronyms (parts of "chorion"):
chorionic villus (one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placenta)
Domain category:
mammal; mammalian (any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk)
Holonyms ("chorion" is a part of...):
amniote (any member of the Amniota)
fetal membrane (any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus)
Derivation:
chorionic (of or relating to a chorion)
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