chorionn.
英 'kɔːrɪən | 美 'korɪ,ɑn
中文n. [胚] 绒毛膜；浆膜；蛋壳
词根词源
chorion (n.)"outer membrane of the fetus," 1540s, medical Latin, from Greek khorion "membrane enclosing the fetus, afterbirth," perhaps from PIE *ghere- "gut, entrail" (see yarn).
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