Search the Dictionary

Any combination or compound of metals fused together; a mixture of metals; for example, brass, which is an alloy of copper and zinc. But when mercury is one of the metals, the compound is called an amalgam.

A compound formed from the hydrate of aluminium by the substitution of a metal for the hydrogen.

A mixture or compound of different things.

To compound or mix, as quicksilver, with another metal; to unite, combine, or alloy with mercury.

The act or operation of compounding mercury with another metal; -- applied particularly to the process of separating gold and silver from their ores by mixing them with mercury. Ure.

like marble. The floating masses are sometimes from sixty to two hundred and twenty-five pounds in weight. It is wholly volatilized as a white vapor at 212º Fahrenheit, and is highly valued in perfumery. Dana.

A compound formed by the union of amidogen with an acid element or radical. It may also be regarded as ammonia in which one or more hydrogen atoms have been replaced by an acid atom or radical. Acid amide, a neutral compound formed by the substitution of the amido group for hydroxyl in an acid.

A compound radical, NH2, not yet obtained in a separate state, which may be regarded as ammonia from the molecule of which one of its hydrogen atoms has been removed; -- called also the amido group, and in composition represented by the form amido.

A gaseous compound of hydrogen and nitrogen, NH3, with a pungent smell and taste: -- often called volatile alkali, and spirits of hartshorn.

A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals.

of two oxides, two sulphides, selenides, or tellurides, as distinguished from a haloid compound. [R.] Berzelius.

Any of eight isomeric liquid compounds, C5H11OH; ordinarily, a mixture of two of these forming a colorless liquid with a peculiar cough-exciting odor and burning taste, the chief constituent of fusel oil. It is used as a source of amyl compounds, such as amyl acetate, amyl nitrite, etc.

A compound of the radical amyl with oxygen and a positive atom or radical.

A crystalline compound used as an antipyretic and analgesic, employed chiefly in rheumatism and neuralgia. It is a complex derivative of quinoline.

The separation of a compound substance, by chemical processes, into its constituents, with a view to ascertain either (a) what elements it contains, or (b) how much of each element is present. The former is called qualitative, and the latter quantitative analysis.

Compound interest. [R.] Bouvier.

A prefix, or combining form, in numerous compounds, usually relating to seed or blood vessels, or to something contained in, or covered by, a vessel.

Having an angle or angles; -- used in compounds; as, right- angled, many-angled, etc. The thrice three-angled beechnut shell. Bp. Hall.

One of a class of compounds which may be regarded as amides in which more or less of the hydrogen has been replaced by phenyl.

omplished in a year; reckoned by the year; as, the annual motion of the earth. A thousand pound a year, annual support. Shak.