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'\'b7, occuring, always combined, in many compounds, as the aldehydes, the ketones, urea, carbonyl chloride, etc.

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.

dehydes, obtained by the distillation of certain salts of organic acids and consisting of carbonyl (CO) united with two hydrocarbon radicals. In general the ketones are colorless volatile liquids having a pungent ethereal odor.

An old name for carbonyl.

uced by, the action of light; -- formerly used specifically to designate a gas now called carbonyl chloride. See Carbonyl.

ed as a white crystalline substance, (C4H3S)2.CO, by the action of aluminium chloride and carbonyl chloride on thiophene.

A suffix used as a characteristic termination of chemical radicals; as in ethyl, carbonyl, hydroxyl, etc.