subchorionic

chorion

[kawr-ee-on, kohr-]
noun
1.
Embryology. the outermost of the extraembryonic membranes of land vertebrates, contributing to the formation of the placenta in the placental mammals.
2.
Zoology. the membrane around the eggs of certain insects, secreted by cells of the ovary.

Origin:
1535–45; < Neo-Latin < Greek chórion membrane enclosing the fetus

chorionic, chorial, adjective
subchorionic, adjective
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World English Dictionary
chorion (ˈkɔːrɪən)
 
n
See also amnion the outer of two membranes that form a sac around the embryonic reptile, bird, or mammal: contributes to the placenta in mammals
 
[C16: from Greek khorion afterbirth]
 
chori'onic
 
adj
 
'chorial
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

chorion
"outer membrane of the fetus," 1540s, from Gk. khorion "membrane enclosing the fetus, afterbirth," perhaps from PIE *ghere- "gut, entrail."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

chorion cho·ri·on (kôr'ē-ŏn')
n.
The outer membrane enclosing the embryo in reptiles, birds, and mammals. In placental mammals it contributes to the development of the placenta.


cho'ri·on'ic (-ŏn'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
chorion   (kôr'ē-ŏn')  Pronunciation Key 
The outer membrane that encloses the embryo of a reptile, bird, or mammal. In mammals, the chorion contributes to the development of the placenta.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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