|1.||(formerly) a process for producing steel by blowing air through molten pig iron at about 1250°C in a Bessemer converter: silicon, manganese, and phosphorus impurities are removed and the carbon content is controlled|
|2.||a similar process for removing sulphur and iron from copper matte|
|[C19: named after Sir Henry Bessemer (1813--98), English engineer]|
|Bessemer process (běs'ə-mər) Pronunciation Key
A method for making steel by forcing compressed air through molten iron to burn out carbon and other impurities.