Word Finder - ether

definition

The substance formerly supposed to fill the upper regions of the atmosphere above the clouds, in particular as a medium breathed by deities.

definition

Often as aether and more fully as luminiferous aether: a substance once thought to fill all unoccupied space that allowed electromagnetic waves to pass through it and interact with matter, without exerting any resistance to matter or energy; its existence was disproved by the 1887 Michelson–Morley experiment and the theory of relativity propounded by Albert Einstein (1879–1955).

definition

The atmosphere or space as a medium for broadcasting radio and television signals; also, a notional space through which Internet and other digital communications take place; cyberspace.

definition

A particular quality created by or surrounding an object, person, or place; an atmosphere, an aura.

definition

Diethyl ether (C4H10O), an organic compound with a sweet odour used in the past as an anaesthetic.

definition

Any of a class of organic compounds containing an oxygen atom bonded to two hydrocarbon groups.

The result, was in Helmholtz's words, to establish beyond doubt that ordinary light consists of electrical vibrations in an all-pervading ether which possesses the properties of an insulator and of a magnetic medium.

It is readily soluble in alcohol, ether and water.

Maxwell explained electric and magnetic forces, not by the action at a distance assumed by the earlier mathematicians, but by stresses in a medium filling all space, and possessing qualities like those attributed to the old luminiferous ether.

There are certainly at least two resins in the powder (which is known officially as Podophylli resina), one of them being soluble and the other insoluble in ether.

It dissolves readily in water and alcohol in all proportions, but is insoluble in ether.

He was regarded as the mediator between suffering humanity and the unknowable and inaccessible god of all being, who reigned in the ether.

Ether is thus the type of a rapidly diffusible stimulant.

It is soluble in water, alcohol and ether.

The glycols are somewhat thick liquids, of high boiling point, the pinacones only being crystalline solids; they are readily soluble in water and alcohol, but are insoluble in ether.

When electric oscillations are set up in an open or closed electric circuit having capacity and inductance, and left to themselves, they die away in amplitude, either because they dissipate their energy as heat in overcoming the resistance of the circuit, or because they radiate it by imparting wave motion to the surrounding ether.

It is soluble in absolute alcohol and in ether.

The solution obtained is neutralized, concentrated on the water-bath, acidified by sulphuric acid and extracted with ether.

It is soluble in 4ths of its weight of cold, and in half its weight of boiling water, and dissolves in alcohol, but not in ether.

It is almost insoluble in water, but readily soluble in alcohol and ether.

Ten to twenty minims of ether, subcutaneously injected, constitute perhaps the most rapid and powerful cardiac stimulant known, and are often employed for this purpose in cases of syncope under anaesthesia.

Taken internally, ether acts in many respects similarly to alcohol and chloroform, but its stimulant action on the heart is much more marked, being exerted both reflexly from the stomach and directly after its rapid absorption.

The after-effects are, if anything, rather pleasant, and the habit of ether drinking is certainly not so injurious as alcohol- ism.

Some solutions of nitroglycerin (in ether, acetone, &c.) burn quietly, and the same is the case when it is held in solution or suspension in a colloid substance, as gelatinized guncotton, &c.

It is a monacid base; the hydrochloride, C 20 H 17 N0 4 HC1, is insoluble in cold alcohol, ether and chloroform, and soluble in 500 parts of water; the acid sulphate, C 20 H 17 N0 4 H 2 SO 4, dissolves in about loo parts of water.

It is insoluble in ether, and is more active than jalapin.

It dissolves readily in ether, and has a soft resinous consistence.

When cold, froth can be immediately dissipated by adding a few drops of ether.

Snakes possess teeth in the maxillaries, mandibles, palatine and pterygoid bones, sometimes also in the intermaxillary; they may be absent in one or the ether of the bones mentioned.

The acid, auricyanic acid, 2HAu (CN) 4.3H20, is obtained by treating the silver salt (obtained by precipitating the potassium salt with silver nitrate) with hydrochloric acid; it forms tabular crystals, readily soluble in water, alcohol and ether.

We find that this dissipation, although undoubtedly going on, proceeds with extreme slowness, so that the vibrations pass their energy on to the ether as rapidly as they acquire it, and the " normal state " is never established.

Mixing with benzol and/or petrol, or with ether in varying proportions, enables it, however, to be employed successfully in them, until such time as engines specially designed for its use are available.

The amount of methyl alcohol present in wood spirit is determined by converting it into methyl iodide by acting with phosphorus iodide; and the acetone by converting it into iodoform by boiling with an alkaline solution of iodine in potassium iodide; ethyl alcohol is detected by giving acetylene on heating with concentrated sulphuric acid, methyl alcohol, !under the same circumstances, giving methyl ether.

It mixes in all proportions with water, alcohol and ether.

The iodide combines with liquid ammonia to form ZrI 4.8NH 3 i and with ether to give Zr14.4(C2H5)20.

Borne by the eagle, he soared high up into the ether, but became afraid.

The oil may be given in capsules, or in the form of an emulsion, with or without maltextract, or success may be obtained by adding, to every two drachms of the oil, ten minims of pure ether and a drop of peppermint oil.

In 1782 he published some experiments on the formation of ether, and in 1783 examined the properties of glycerine, which he had discovered seven years before.

Sellmeier, is based upon the assumption that an interaction takes place between ether and matter.

Sellmeier adopted the elastic-solid theory of the ether, and imagined the molecules to be attached to the ether surrounding them, but free to vibrate about their mean positions within a limited range.

Thus the ether within the dispersive medium is loaded with molecules which are forced to perform oscillations of the same period as that of the transmitted wave.

The equations finally arrived at are DX2(A2_ 2) (x2_ A2m)2+g2A2 ' DgA3 (A A l m) 2 +g 2 A2 ' where is the wave-length in free ether of light whose refractive index is n, and A m the wave-length of light of the same period as the electron, is a coefficient of absorption, and D and g are constants.

It is only very sparingly soluble in water, but dissolves readily in solutions of the alkaline iodides and in alcohol, ether, carbon bisulphide, chloroform, and many liquid hydrocarbons.

Its solutions in the alkaline iodides and in alcohol and ether are brown in colour, whilst in chloroform and carbon bisulphide the solution is violet.

Bunsen by boiling iodine with aqua regia and extracting with ether.

In 1902, in an "attempt at a chemical conception of the ether," he put forward the hypothesis that there are in existence two elements of smaller atomic weight than hydrogen, and that the lighter of these is a chemically inert, exceedingly mobile, all-penetrating and all-pervading gas, which constitutes the aether.

Hydroferrocyanic acid, H 4 Fe(NC)s, is best obtained by decomposing the lead salt with sulphuretted hydrogen under water, or by passing hydrochloric acid gas into a concentrated ether solution of the potassium salt.

In the latter case the precipitate is dissolved in water, reprecipitated by ether, and washed with ether-alcohol.

They are colourless liquids, readily soluble in alcohol and in ether, but insoluble in water.

Perrault also uses fee for anything that has magical quality; "the key was fee," had mana, or wakan, savage words for the supposed "power," or ether, which works magic or is the vehicle of magical influences.

It is miscible in all proportions with water, alcohol and ether.

The ether three sides are occupied by the episcopal and municipal palaces, and the Palazzo Piccolomini; the last, resembling the Palazzo Rucellai at Florence, is the finest, and in front of it is a beautiful fountain.

When the reaction is complete the acid is neutralized with soda, and the phenyl methyl pyrazolone extracted with ether and distilled in vacuo.

The compounds containing this radical are treated under other headings; the hydride is better known as ethane, the alcohol, C 2 H 5 OH, is the ordinary alcohol of commerce, and the oxide (C 2 H 5) 2 O is ordinary ether.

By suspending it in ether and passing ammonia, potassium amidochromate, Cr02-NH2.

It is readily soluble in alcohol, ether and benzene.