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The light yielded by the combustion of illuminating gas.

A volatile hydrocarbon, used as an illuminant, or for charging illuminating gas.

also by the distillation of bituminous coal. It is used in making air gas, and in giving illuminating power to water gas. See Carburetor.

The act of illuminating, or supplying with light; the state of being illuminated.

Irradiating or illuminating; as, the irradiant moon. Boyse.

An oil used for illuminating purposes, formerly obtained from the distillation of mineral wax, bituminous shale, etc., and hence called also coal oil. It is now produced in immense quantities, chiefly by the distillation and purification of petroleum. It consists chiefly of several hydrocarbons of the methane series.…

e, esp. the internal fat of the abdomen; also, this fat melted and strained. Lard oil, an illuminating and lubricating oil expressed from lard. -- Leaf lard, the internal fat of the hog, separated in leaves or masses from the kidneys, etc.; also, the same melted.

especially, for comparing the relative intensities of different lights, or their relative illuminating power.

A musical instrument in which the tones are produced by flames of hydrogen, or illuminating gas, burning in tubes of different sizes and lengths.

ins per hour. Standard gas, burning at the rate of five cubic feet per hour, must have an illuminating power equal to that of fourteen such candles. -- Unit of measure (as of length, surface, volume, dry measure, liquid measure, money, weight, time, and the like), in general, a determinate quantity or magnitude of the…