Word Study
chorion
WORDNET DICTIONARY
Noun chorion has 1 sense
- chorion(n = noun.animal) Array - the outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals); Array is a part of amniote, fetal membrane
has parts: chorionic villus
is a kind of sac
Derived form adjective chorionic1
CIDE DICTIONARY
chorion, n. [NL., fr. Gr. .].
- The outer membrane which invests the fetus in the womb; also, the similar membrane investing many ova at certain stages of development. [1913 Webster]
- The outer membrane of seeds of plants. [1913 Webster]
OXFORD DICTIONARY
chorion, n. the outermost membrane surrounding an embryo of a reptile, bird, or mammal.
Derivative
chorionic adj.
Etymology
Gk khorion
For further exploring for "chorion" in Webster Dictionary Online