- a reverberatory furnace; esp., a type of reverberatory furnace when the gasoline is fuel, utilized in production steel.
- the type of regenerative furnace for the reverberatory kind found in making steel because of the Martin, Siemens, and Siemens-Martin processes. See metallic.
- a furnace for making steel where the metal is positioned on a shallow hearth and flames of burning up gas and hot-air play over it
Hypernym for "open-hearth furnace"
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