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pig iron

American  

noun

  1. iron tapped from a blast furnace and cast into pigs in preparation for conversion into steel, cast iron, or wrought iron.

  2. iron in the chemical state in which it exists when tapped from the blast furnace, without alloying or refinement.

pig iron British  

noun

  1. crude iron produced in a blast furnace and poured into moulds in preparation for making wrought iron, steels, alloys, etc

"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

Etymology

Origin of pig iron

First recorded in 1655–65

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.