amnion

[ am-nee-uhn ]

/ ˈæm ni ən /

SEE SYNONYMS FOR amnion ON THESAURUS.COM

noun, plural am·ni·ons, am·ni·a [am-nee-uh]. /ˈæm ni ə/.

Anatomy, Zoology. the innermost of the embryonic or fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended.

Zoology. a similar membrane of insects and other invertebrates.

Origin of amnion

1660–70; <Greek, equivalent to amn(ós) lamb (see yean) + -ion diminutive suffix

Words nearby amnion

amniocentesis, amniochorial, amniogenesis, amniography, amnioma, amnion, amnionitis, amnion nodosum, amniorrhea, amniorrhexis, amnioscope

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for amnion

A very early condition of Man, with yelk-sac, allantois, and amnion (original).
Lectures and Essays|T.H. Huxley
The embryo thus enclosed in the egg finds its protection in the fact that it is encased in a fluid contained in the amnion.
The Meaning of Evolution|Samuel Christian Schmucker
This second fold gives rise to the amnion, and is limited entirely to the somatopleure.
The Works of Francis Maitland Balfour, Volume III (of 4)|Francis Maitland Balfour
The amnion forms a small fold covering over the cephalic extremity of the embryo, which is deeply embedded in the yolk.
The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour

They are the chorion and the amnion; besides which, there are two others that require notice, viz.
A System of Midwifery|Edward Rigby

British Dictionary definitions for amnion

amnion

/ (ˈæmnɪən) /

noun plural -nions or -nia (-nɪə)

the innermost of two membranes enclosing an embryonic reptile, bird, or mammalSee also chorion

Word Origin for amnion

C17: via New Latin from Greek: a little lamb, from amnos a lamb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for amnion

amnion

[ ăm′nē-ən, -ŏn′ ]

n. pl. am•ni•ons

The thin, membranous sac filled with a serous fluid in which the embryo or fetus is enclosed and suspended in the uterus.amniotic sac

Other words from amnion

am′ni•ot′ic (-ŏt′ĭk) null adj.

Scientific definitions for amnion

amnion

[ ăm′nē-ən ]

A thin, membranous sac filled with a watery fluid (called the amniotic fluid) in which the embryo or fetus of a reptile, bird, or mammal is suspended during prenatal development. Also called amniotic sac

单词	amnion
释义	amnion [ am-nee-uhn ] / ˈæm ni ən / SEE SYNONYMS FOR amnion ON THESAURUS.COM noun, plural am·ni·ons, am·ni·a [am-nee-uh]. /ˈæm ni ə/. Anatomy, Zoology. the innermost of the embryonic or fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended. Zoology. a similar membrane of insects and other invertebrates. Origin of amnion 1660–70; <Greek, equivalent to amn(ós) lamb (see yean) + -ion diminutive suffix Words nearby amnion amniocentesis, amniochorial, amniogenesis, amniography, amnioma, amnion, amnionitis, amnion nodosum, amniorrhea, amniorrhexis, amnioscope Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for amnion A very early condition of Man, with yelk-sac, allantois, and amnion (original). Lectures and Essays\|T.H. Huxley The embryo thus enclosed in the egg finds its protection in the fact that it is encased in a fluid contained in the amnion. The Meaning of Evolution\|Samuel Christian Schmucker This second fold gives rise to the amnion, and is limited entirely to the somatopleure. The Works of Francis Maitland Balfour, Volume III (of 4)\|Francis Maitland Balfour The amnion forms a small fold covering over the cephalic extremity of the embryo, which is deeply embedded in the yolk. The Works of Francis Maitland Balfour, Volume 1\|Francis Maitland Balfour They are the chorion and the amnion; besides which, there are two others that require notice, viz. A System of Midwifery\|Edward Rigby British Dictionary definitions for amnion amnion / (ˈæmnɪən) / noun plural -nions or -nia (-nɪə) the innermost of two membranes enclosing an embryonic reptile, bird, or mammalSee also chorion Word Origin for amnion C17: via New Latin from Greek: a little lamb, from amnos a lamb Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to amnion afterbirth, arachnoid membrane, placenta, water bag Medical definitions for amnion amnion [ ăm′nē-ən, -ŏn′ ] n. pl. am•ni•ons The thin, membranous sac filled with a serous fluid in which the embryo or fetus is enclosed and suspended in the uterus.amniotic sac Other words from amnion am′ni•ot′ic (-ŏt′ĭk) null adj. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for amnion amnion [ ăm′nē-ən ] A thin, membranous sac filled with a watery fluid (called the amniotic fluid) in which the embryo or fetus of a reptile, bird, or mammal is suspended during prenatal development. Also called amniotic sac The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
随便看	truss hoop trussing truss rod trust trust account trustafarian trustbuster trust busting trust company trust deed trustee trustee in bankruptcy trustee investment trustee process trusteeship trustful trust fund trust hotel trustification trusting trustless trustor trust territory trustworthy trusty

amnion

noun, plural am·ni·ons, am·ni·a [am-nee-uh]. /ˈæm ni ə/.

Origin of amnion

Words nearby amnion

Example sentences from the Web for amnion

British Dictionary definitions for amnion

noun plural -nions or -nia (-nɪə)

Word Origin for amnion

Words related to amnion

Medical definitions for amnion

n. pl. am•ni•ons

Other words from amnion

Scientific definitions for amnion