Definition of Amnios

1. Noun. Thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals).

Exact synonyms: Amnion, Amniotic Sac
Group relationships: Amniote, Fetal Membrane
Category relationships: Mammal, Mammalian
Generic synonyms: Sac
Derivative terms: Amnic, Amnionic, Amniotic

Definition of Amnios

1. n. Same as Amnion.

Definition of Amnios

1. amnio [n] - See also: amnio

Amnios Pictures

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Lexicographical Neighbors of Amnios

amniogenic cells
amnion nodosum
amnion ring
amnionic fluid
amnios (current term)
amniotic amputation
amniotic band syndrome
amniotic cavity
amniotic corpuscle

Literary usage of Amnios

Below you will find example usage of this term as found in modern and/or classical literature:

1. A System of Chemistry by Thomas Thomson (1817)
"Within this amnios there is a liquid, distinguished by the name of the liquor of the amnios, which surrounds the fotus on every part. ..."

2. Chemistry of Animal Bodies by Thomas Thomson (1843)
"OF THE LIQUOR OF THE amnios. THE foetus in the uterus is enveloped in a peculiar membrane or covering, to which anatomists have given the name of amnios. ..."

3. Outlines of human physiology by Herbert Mayo (1827)
"The chorion is a complete bag of tender membrane inclosing the amnios, and continuous with the placenta : in the early months, it is uniformly thick and ..."

4. The Philosophical Transactions ... Abridged by Royal Society (Great Britain), John Lowthorp, Henry Jones, Andrew Reid, John Gray, John Eames, John Martyn (1749)
"... and alfo much more transparent, than the other amnios \ which ... at the Neck F : But on the contrary, the amnios is of the fame irregular Figure, ..."

5. Descriptive and Illustrated Catalogue of the Physiological Series of by Richard Owen, Royal College of Surgeons of England Museum (1840)
"A section of the amnios, chorion, and decidua reflexa of an embryo, at about the same period of development: a portion of the amnios has been reflected from ..."

6. Orr's Circle of the Sciences: A Series of Treatires on the Principles of by Richard Owen, Wm S Orr, John Radford Young, Alexander Jardine, Robert Gordon Latham, Edward Smith, William Sweetland Dallas (1855)
"The amnios (Fig. 250) is a fleshy bag surrounding the embryo in many seeds, and consequently lying within the innermost integument. ..."

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