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definitions
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open-hearth

[oh-puh n-hahrth]
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adjective
  1. noting, pertaining to, or produced by the open-hearth process.

Origin of open-hearth

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for open-hearth

Historical Examples

  • Open-hearth steel is an important manufacture in Birmingham.

    Commercial Geography

    Jacques W. Redway

  • All these parts are made of the finest quality of open-hearth steel.

  • The Corporation altogether has 335 open-hearth furnaces and 38 converters.

    United States Steel

    Arundel Cotter

  • All the newer steel plants are equipped with open-hearth furnaces.

    United States Steel

    Arundel Cotter

  • They may be either Bessemer, open-hearth, or crucible steel.