open-hearth furnace

open-hearth process

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Definitions of open-hearth furnace words

noun open-hearth furnace a process of steelmaking in which the charge is laid in a furnace (open-hearth furnace) on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls. 1
noun open-hearth furnace (esp formerly) a steel-making reverbatory furnace in which pig iron and scrap are contained in a shallow hearth and heated by producer gas 0

before 1885

One of the 21% newest English words

First recorded in 1885-90

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exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 27% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

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