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A combustible mixture of nitrogen, carbon monoxide, and hydrogen, generated by passing air with steam over burning coke or coal in a furnace and used as fuel. Also called air gas.
(Elements & Compounds) a mixture of carbon monoxide and nitrogen produced by passing air over hot coke, used mainly as a fuel. Also called: air gas See also water gas
a mixture of carbon monoxide, hydrogen, and nitrogen prepared from coke and used as an industrial fuel, in certain gas engines, and in the manufacture of ammonia.