Bessemer noun. ['bɛsɪmǝ] M19.
[Sir Henry Bessemer (1813-98), English engineer.]
Bessemer process, a steel-making process (now obsolete) in which carbon, silicon, etc. are removed from molten pig-iron by an air blast in a special retort; Bessemer converter, such a retort; Bessemer steel, Bessemer iron, etc., the products of this process.

■ bessemerize verb trans. treat by the Bessemer process L19.

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