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chorion (n.)
[chorion 词源字典]
"outer membrane of the fetus," 1540s, medical Latin, from Greek
khorion
"membrane enclosing the fetus, afterbirth," perhaps from PIE
*ghere-
"gut, entrail" (see
yarn
).
[chorion etymology, chorion origin, 英语词源]
[chorion 词源字典]