Definition of "open-hearth process" []

• A process by which melted cast iron is converted into steel by the addition of wrought iron, or iron ore and manganese, and by exposure to heat in an open-hearth furnace; -- also called the Siemens-Martin process, from the inventors. (adjective)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)