Water-gas definitions

A fuel gas containing approximately equal amounts of carbon monoxide and hydrogen, and varying smaller amounts of methane, carbon dioxide, and nitrogen, made by passing steam and air over heated coke or coal.
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A fuel gas that is a poisonous mixture of hydrogen, carbon dioxide, carbon monoxide, and nitrogen, made by forcing steam over incandescent coke or coal.
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A mixture of hydrogen and carbon monoxide produced by passing steam over hot coke; used as a domestic fuel.
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