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Giving or producing light; used for illumination. Illuminating gas. See Gas, n., 2 (a).

r. It is a colorless gas, with a peculiar, unpleasant odor, and is produced for use as an illuminating gas in a number of ways, but chiefly by the action of water on calcium carbide. Its light is very brilliant. Watts.

A light in which high illuminating power is obtained by introducing a jet of oxygen gas or of common air into the center of a flame fed with coal gas or with oil.

four or five inches in length, having small holes for the entrance of air at the bottom. Illuminating gas being also admitted at the bottom, a mixture of gas and air is formed which burns at the top with a feebly luminous but intensely hot flame. -- Argand burner, Rose burner, etc. See under Argand, Rose, etc.…

re or heat; the state of being on fire or excessively heated. Burning fluid, any volatile illuminating oil, as the lighter petroleums (naphtha, benzine), or oil of turpentine (camphine), but esp. a mixture of the latter with alcohol. -- Burning glass, a conxex lens of considerable size, used for producing an intense h…

nd is used by the natives as a candle. The oil has many uses. -- Candle power (Photom.), illuminating power, as of a lamp, or gas flame, reckoned in terms of the light of a standard candle. Electric candle, A modification of the electric arc lamp, in which the carbon rods, instead of being placed end to end, are arran…

Illuminating power, as of a lamp, or gas flame, reckoned in terms of the light of a standard candle.

Any volatile liquid used in charging illuminating gases.

pregnated 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, CH4; fire damp.…

, or air is passed through or over a volatile hydrocarbon, in order to confer or increase illuminating power. [Written also carburettor.]

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.

lack, tarry liquid, obtained by the distillation of bituminous coal in the manufacture of illuminating gas; used for making printer's ink, black varnish, etc. It is a complex mixture from which many substances have been obtained, especially hydrocarbons of the benzene or aromatic series.

y of cabbage (Brassica oleracea), cultivated for its seeds, which yield an oil valued for illuminating and lubricating purposes; summer rape.

alembic, or condenser; rectification; vaporization; condensation; as, the distillation of illuminating gas and coal, of alcohol from sour mash, or of boric acid in steam.

A branching frame, often of ornamental design, to support electric illuminating lamps.

To adorn by illuminating or ornamenting with colored and decorated letters and figures, as a book or manuscript. [R.] Palsgrave.

A gaseous hydrocarbon, C2H6, forming a constituent of ordinary illuminating gas. It is the second member of the paraffin series, and its most important derivatives are common alcohol, aldehyde, ether, and acetic acid. Called also dimethyl.

A colorless, gaseous hydrocarbon, C2H4, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), -- hence called olefiant gas. Called…

Emitting flames; afire; blazing; consuming; illuminating.

, oil, resin, etc. It gives a brilliant light when burned, and is the common gas used for illuminating purposes.