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blast furnace

noun

  1. a large vertical furnace for smelting iron from ore, using coke as fuel: designed so as to direct a continuous blast of air through the fuel in order to obtain a high rate of combustion.


blast furnace

noun

  1. a vertical cylindrical furnace for smelting iron, copper, lead, and tin ores. The ore, scrap, solid fuel, and slag-forming materials are fed through the top and a blast of preheated air is forced through the charge from the bottom. Metal and slag are run off from the base
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of blast furnace1

First recorded in 1700–10

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