amnion

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am·ni·on

 (ăm′nē-ən, -ŏn′)
n. pl. am·ni·ons or am·ni·a (-nē-ə)
A tough, thin membrane that forms a sac enclosing the embryo or fetus of a mammal, bird, or reptile. It is filled with a serous fluid in which the embryo or fetus is suspended.

[New Latin, from Greek amneion, variant of amneios, amnion, and from amnion, amnion, both from amnos, lamb; akin to Irish úan, Latin agnus, and Old Church Slavonic agnę, lamb.]

am′ni·ot′ic (-ŏt′ĭk), am′ni·on′ic (-ŏn′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

amnion

(ˈæmnɪən)
n, pl -nions or -nia (-nɪə)
(Zoology) the innermost of two membranes enclosing an embryonic reptile, bird, or mammal. See also chorion
[C17: via New Latin from Greek: a little lamb, from amnos a lamb]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

am•ni•on

(ˈæm ni ən)

n., pl. -ni•ons, -ni•a (-ni ə)
the innermost membrane of the sac surrounding the embryo in reptiles, birds, and mammals, enclosing the amniotic fluid.
[1660–70; < Greek amníon, derivative of amnós lamb (see yean)]
am`ni•ot′ic (-ˈɒt ɪk) am`ni•on′ic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

am·ni·on

(ăm′nē-ən)
A sac of thin, tough membrane containing a watery liquid in which the embryo of a reptile, bird, or mammal is suspended. ♦ The watery fluid in the amnion is called amniotic fluid.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
amniocentesis, amnion - Amniocentesis is formed by amnion, the innermost membrane enclosing a fetus, and Greek kentesis, "pricking."
See also related terms for mammal.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.amnion - thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)amnion - thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
amniote - any member of the Amniota
mammal, mammalian - any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
fetal membrane - any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus
sac - a structure resembling a bag in an animal
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

amnion

[ˈæmnɪən] n (amnions or amnia (pl)) [ˈæmnɪə]amnio
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

am·ni·on

n. amnios, saco membranoso que envuelve el embrión.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Which draws us back to an earlier encounter with Amnions, where, wondering if poetry can be enough to hang faith on, Wiman's question is, "Faith in what, exactly?"
Briefly, reflected and placental amnions were cut into 2 x 2 cm pieces, incubated in 1 mg/mL collagenase solution, and shaken for 2 h at 37[degrees]C.
First, the intrinsic model, described by Streeter in 1930 [5], which suggests the existence of an early embryolesion with alterations of the germinal disc that would produce an inflammatory response of the adjacent amnions and that would then develop a fibrous band.
Wiggins credits NCCU chancellors James Amnions, Charlie Nelms and Debra Saunders-White for recognizing the full potential of the university's jazz program and bringing to it support for additional full-time faculty and other resources.
Few cases of acquired angioedema have been reported in patients with systemic lupus erythematosus (SLE), some of them had an amnions course, which had to be intubated and ICU admitted due to airway obstruction.
Schneider, "Myofibroblasten im bindegewebe des menschlichen amnions," Zeitschrift fur Geburtshilfe und Perinatologie, vol.
KANSAS -- Tiffany Alexander, Lori Amnions, Eric Belcher, Patricia Greene, Marta Johnston, Misty Leiker, Carol Mitchell, Miranda Parson, Christopher Weis, Anthony Wilkins, Elizabeth Rice
Edited by Elizabeth Amnions, New York and London: W.W.
They took discarded human amnions and stretched each across the bottom of an open-ended glass tube, which they then filled with human amniotic fluid.
Headlining winemakers include Californians Paul Draper of Ridge Vineyards, Tod Mostero of Dominus Estate and Frederick Amnions of The Napa Valley Reserve, Tony Soter of Oregon, and Kees van Leeuwen of Chateau Cheval Blanc in Bordeaux.
Harper, Frances Ellen Watkins, by Elizabeth Amnions, 2.2 (1985): 61-66.
The presence of 2 chorions and amnions at birth confirm that the twins are dichorionic/diamniotic identical twins arising from a single zygote, a relatively rare gestation process (occurring only in approximately 20% of identical twins).