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Что (кто) такое ether - определение
CLASS OF ORGANIC COMPOUNDS CONTAINING OXYGEN CONNECTED TO TWO ORGANYL GROUPS
Organic ether; Ethers; Tertiary ether; Primary ether; Secondary ether; Polyether; Polyethers; Diaryl ether; Ether (chemistry); Oleum dulci vitrioli; Ethers, cyclic; Aryl ether; Ether bond; O-alkylation; Alkoxyalkane; Ether group; Etherification
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ETHER
<language> A concurrent object-oriented language?
(1997-03-18)
ether
n. under ether
Ether
The ether is a hypothetical thing that was invented to explain the
phenomena of light. Light is theoretically due to transverse vibrations
of the ether. Since the days of Young the conception of the ether has
extended, and now light, "radiant heat," and electricity are all treated
as phenomena of the ether. Electrical attraction and repulsion are
explained by considering them due to local stresses in the ether;
magnetic phenomena as due to local whirlpools therein. The ether was
originally called the luminiferous ether, but the adjective should now
be dropped. Its density is put at 936E-21 that of water, or equal to
that of the atmosphere at 210 miles above the earth's surface. Its
rigidity is about 1E-9 that of steel (see Ten, Powers of); as a whole it
is comparable to an all-pervading jelly, with almost perfect elasticity.
The most complete vacuum is filled with ether.
All this is a hypothesis, for the ether has never been proved to exist.
Whether gravitation will ever be explained by It remains to be seen.
[Transcriber's note: The Michelson-Morley experiment in 1887 (five years
before this book) cast serious doubt on the ether. In 1905 Einstein
explained electromagnetic phenomenon with photons. In 1963 Edward M.
Purcell used special relativity to derive the existence of magnetism and
radiation.]
Ether
·noun Supposed matter above the air; the air itself.
II. Ether ·noun Any similar oxide of hydrocarbon radicals; as, amyl ether; valeric ether.
III. Ether ·noun A medium of great elasticity and extreme tenuity, supposed to pervade all space, the interior of solid bodies not excepted, and to be the medium of transmission of light and heat; hence often called luminiferous ether.
IV. Ether ·noun A light, volatile, mobile, inflammable liquid, (C2H5)2O, of a characteristic aromatic odor, obtained by the distillation of alcohol with sulphuric acid, and hence called also sulphuric ether. It is powerful solvent of fats, resins, and pyroxylin, but finds its chief use as an anaesthetic. Called also ethyl oxide.
ether
['i:??]
¦ noun
1. (also diethyl ether) a pleasant-smelling, volatile, highly flammable liquid used as an anaesthetic and as a solvent.
2. Chemistry any organic compound with an oxygen atom linking two alkyl groups.
3. (also aether) chiefly literary the clear sky; the upper regions of air beyond the clouds.
4. (also aether) Physics, historical a substance formerly postulated to permeate all space and to transmit light.
Derivatives
etheric i:'??r?k, 'i:?(?)r?k adjective
Origin
ME: from OFr., or via L. from Gk aither 'upper air', from the base of aithein 'burn, shine'.
ether
Ether is a colourless liquid that burns easily. It is used in industry and in medicine as an anaesthetic.
...a sweetish smell of ether and iodine.
N-UNCOUNT
Ether
In organic chemistry, ethers are a class of compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. They have the general formula , where R and R′ represent the alkyl or aryl groups.
Ether (Book of Mormon prophet)
![Deseret]] is from the [[Book of Ether]].](https://commons.wikimedia.org/wiki/Special:FilePath/Washington Monument Deseret Stone in 2000.jpg?width=200 "Deseret]] is from the [[Book of Ether]].")
PERSON IN THE BOOK OF MORMON; JAREDITE PROPHET, ONE OF THE LAST SURVIVING JAREDITES, AND AUTHOR OF THE BOOK OF ETHER; SON OF CORIANTOR, GRANDSON OF MORON
Ether (Book of Mormon); Ether (prophet)
According to the Book of Mormon, Ether ()churchofjesuschrist.org: "Book of Mormon Pronunciation Guide" (retrieved 2012-02-25), IPA-ified from «ē´ther» is a Jaredite prophet, one of the last surviving Jaredites, and primary author of the Book of Ether.
Ether, North Carolina
HUMAN SETTLEMENT IN NORTH CAROLINA, UNITED STATES OF AMERICA
Ether is an unincorporated community in the northeastern part of Montgomery County, North Carolina, United States.
Etherification
·noun The act or process of making ether; specifically, the process by which a large quantity of alcohol is transformed into ether by the agency of a small amount of sulphuric, or ethyl sulphuric, acid.
Википедия
Ether
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In organic chemistry, ethers are a class of compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. They have the general formula R−O−R′, where R and R′ represent the alkyl or aryl groups. Ethers can again be classified into two varieties: if the alkyl or aryl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ether, whereas if they are different, the ethers are called mixed or unsymmetrical ethers. A typical example of the first group is the solvent and anaesthetic diethyl ether, commonly referred to simply as "ether" (CH3−CH2−O−CH2−CH3). Ethers are common in organic chemistry and even more prevalent in biochemistry, as they are common linkages in carbohydrates and lignin.
