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The radical (CO)'\'b7, occuring, always combined, in many compounds, as the aldehydes, the ketones, urea, carbonyl chloride, etc.

A beautiful crystalline compound, SiC, consisting of carbon and silicon in combination; carbon silicide. It is made by heating carbon and sand together in an electric furnace. The commercial article is dark-colored and iridescent. It is harder than emery, and is used as an abrasive.

A compound of carbon and oxygen, as carbonyl, with some element or radical; as, potassium carboxide. Potassium carboxide, a grayish explosive crystalline compound, C6O6K, obtained by passing carbon monoxide over heated potassium.

Saturated or impregnated with some volatile carbon compound; as, water gas is carbureted to increase its illuminating power. [Written also carburetted.] Carbureted hydrogen gas, any one of several gaseous compounds of carbon and hydrogen, some of with make up illuminating gas. -- Light carbureted hydrogen, marsh gas,…

To combine wtih carbon or a carbon compound; -- said esp. of a process for conferring a higher degree of illuminating power on combustible gases by mingling them with a vapor of valatile hydrocarbons.

A simple pistil or single-celled ovary or seed vessel, or one of the parts of a compound pistil, ovary, or seed vessel. See Illust of Carpaphore.

A brownish purple pigment, obtained by the action of some compounds of tin upon certain salts of gold. It is used in painting and staining porcelain and glass to give a beautiful purple color. Commonly called Purple of Cassius.

A compound move of the king and castle. See Castle, v. i.

is now believed that such reactions are attended with the formation of an intermediate compound or compounds, so that by alternate composition and decomposition the agent is apparenty left unchanged; as, the catalysis of making ether from alcohol by means of sulphuric acid; or catalysis in the action of soluble ferment…

A compound medicinal powder, used by the ancients to sprinkle on ulcers, to absorb perspiration, etc. Dunglison.

An East Indian Weight of 11/3 pounds.

A jar of vessel, or a division of a compound vessel, for holding the exciting fluid of a battery.

A weight of one hundred pounds avoirdupois; -- called in many parts of the United States a Hundredweight.

n several of the continental countries, varying in different places from 100 to about 112 pounds.

A radical, C27H55 supposed to exist in several compounds obtained from Chinese wax, beeswax, etc.

A radical, C16H33, not yet isolated, but supposed to exist in a series of compounds homologous with the ethyl compounds, and derived from spermaceti.

n rule (Arith.), a theorem for solving numerical problems by composition of ratios, or compound proportion, by which, when several ratios of equality are given, the consequent of each being the same as the antecedent of the next, the relation between the first antecedent and the last consequent is discovered. -- Chain…

Finely prepared chalk, used as a drawing implement; also, by extension, a compound, as of clay and black lead, or the like, used in the same manner. See Crayon. Black chalk, a mineral of a bluish color, of a slaty texture, and soiling the fingers when handled; a variety of argillaceous slate. -- By a long chalk, by a…

ally called change) for; as, to change a gold coin or a bank bill. He pulled out a thirty-pound note and bid me change it. Goldsmith. To change a horse, or To change hand (Man.), to turn or bear the horse's head from one hand to the other, from the left to right, or from the right to the left. -- To change hands, to c…

Thirty-six pigs of lead, each pig weighing about seventy pounds; -- called also charre.