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Origin and history of chorion

chorion(n.)

"outer membrane of the fetus," 1540s, medical Latin, from Greek khorion "membrane enclosing the fetus, afterbirth," from PIE root *ghere- "gut, entrail." Related: Chorionic.

also from 1540s

Entries linking to chorion

choroid(adj.)

"like a chorion, membranous," 1680s, from Latinized form of Greek khoroeides, a corruption of khorioeides, from khorion (see chorion) + eidos "resemblance" (see -oid). Related: Choroidal.

*ghere-

*gherə-, Proto-Indo-European root meaning "gut, entrail." 

It might form all or part of: Chordata; chordate; chord (n.2) "structure in animals resembling a string;" chorion; cord; cordon; harpsichord; haruspex; hernia; notochord; yarn.

It might also be the source of: Sanskrit hira "vein; band;" Latin hernia "rupture;" Greek khorde "intestine, gut-string;" Lithuanian žarna "guts, leather bag;" Old English gearn, Old High German garn "yarn" (originally made of dried gut), Old Norse gorn "gut."

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