1) Outermost embryonic membrane
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https://www.crosswordclues.com/clue/chorion
In humans and most mammals, the chorion is one of the membranes that exist during pregnancy between the developing fetus and mother. It is formed by extraembryonic mesoderm and the two layers of trophoblast and surrounds the embryo and other membranes. The chorionic villi emerge from the chorion, invade the endometrium, and allow transfer of nutri...
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http://en.wikipedia.org/wiki/Chorion
[company] Chorion Limited was a major international media production company with offices in London, New York and Sydney. The company produced TV shows and feature films, and was best known for the heritage properties included in its portfolio. These included children`s characters such as Paddington Bear, Peter Rabbit, The Mr. Men, The Very...
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http://en.wikipedia.org/wiki/Chorion_(company)
[egg] The chorion is the outermost membrane around the embryo in mammals, birds and reptiles. It develops from an outer fold on the surface of the yolk sac., which lies outside the vitteline envelope and is developed by the follicle cells while the egg is in the ovary. == Function in Amniotes == The chorion is one of the four extraembryonic...
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http://en.wikipedia.org/wiki/Chorion_(egg)
• (n.) The outer membrane of seeds of plants. • (n.) The outer membrane which invests the fetus in the womb; also, the similar membrane investing many ova at certain stages of development. • (n.) The true skin, or cutis.
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http://thinkexist.com/dictionary/meaning/chorion/
in reptiles, birds, and mammals, the outermost membrane around the embryo. It develops from an outer fold on the surface of the yolk sac. In insects ... [9 related articles]
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http://www.britannica.com/eb/a-z/c/77
One of the two membranes that surrounds the embryo. The chorion lies outside the amnion and develops into the placenta. Chorionic tissue may be removed for antenatal diagnosis.
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http://www.daviddarling.info/encyclopedia/C/chorion.html
The inner shell or covering of the insect egg.
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http://www.earthlife.net/insects/glossary.html
The outermost layer of the two foetal membranes, which envelope the growing foetus and serves as a protective barrier against infection
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http://www.encyclo.co.uk/local/20415
1. Protective membrane around the eggs of insects and fishes. ... 2. Extraembryonic membrane surrounding the embryo of amniote vertebrates. The outer epithelial layer of the chorion is derived from the tropoblast. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973
(kor´e-on) an extraembryonic fetal membrane, composed of trophoblast lined with mesoderm; it develops villi, becomes vascularized, and forms the fetal part of the placenta. chorion frondosum the placental part of the chorion; it is covered by villi. chorion laeve ...
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http://www.encyclo.co.uk/local/21001
(1) Protective membrane around the eggs of insects and fishes. (2) Extraembryonic membrane surrounding the embryo of amniote vertebrates. The outer epithelial layer of the chorion is derived from the trophoblast.
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http://www.encyclo.co.uk/visitor-contributions.php
Cho'ri·on noun [ New Latin , from Greek ....]
1. (Anat.) (a) The outer membrane which invests the fetus in the womb; also, the similar membrane investing many ova at certain stages of development.
(b) The true skin, or cutis.
2. (Botany) The outer m...
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http://www.encyclo.co.uk/webster/C/72
Chorion: The outermost of the two fetal membranes - the amnion is the innermost --. which together surround the embryo. The chorion develops villi (vascular fingers) and gives rise to the placenta. In Greek, the word "chorion" means "skin or leather."
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http://www.medterms.com/script/main/art.asp?articlekey=2719
An extraembryonic membrane that participates in the formation of the placenta.
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http://www.mhhe.com/biosci/abio/glossary.mhtml
The outer membrane of the amniotic sac that envelopes the fetus during fetal development. The cells of the chorion are sampled during chorionic villus sampling.
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http://www.pregnology.com/
The chorion is the outermost layer of the fertilized ovum (zygote) that furnishes a protective and nutritive covering and produces the amniotic fluid. The amniotic fluid protects the embryo and fetus during pregnancy and the rupture of the amniotic sac is one of the first signs that labor has begun. During childbirth the amniotic fluid lubricates t...
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http://www.probertencyclopaedia.com/browse/EC.HTM
chorion 1. The outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals). 2. The outermost of the two fetal membranes, the amnion being the innermost, which together surround the embryo. The chorion develops villi (vascular fingers) and gives rise to the placenta. In Greek, the word chorion means, 'skin' or...
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http://www.wordinfo.info/words/index/info/view_unit/461/
The outer covering or shell of the spider or insect egg.
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http://www.xs4all.nl/~ednieuw/Spiders/Spiderglossary.htm
In avian biology, the extra-embryonic membrane inside the egg that surrounds the entire avian embryo and the other three extra-embryonic membranes (the allantois, amnion, and yolk sac). It is homologous (evolutionarily related) to the mammalian membrane, also called the chorion, which forms much of the placenta in most mammals.
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https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
the outer shell of an insect's egg.
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https://www.amentsoc.org/insects/glossary/begins/with/c/
The outer casing of an egg.
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https://www.encyclo.co.uk/local/20499
noun outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals)
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https://www.encyclo.co.uk/local/20974
Outermost of the three membranes enclosing the embryo of reptiles, birds, and mammals; the amnion is the innermost membrane
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https://www.encyclo.co.uk/local/21221
a membrane the surrounds the yolk sac and amnion
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https://www.encyclo.co.uk/local/22440
No exact match found.
