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ore hearth

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noun
  1. a small blast furnace for smelting lead.

Origin of ore hearth

First recorded in 1815–25
Also called Scotch furnace, Scotch hearth.

Scotch furnace

noun Metallurgy.
  1. ore hearth.

Origin of Scotch furnace

First recorded in 1890–95
Also called Scotch hearth.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018