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high-speed steel

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noun
  1. an especially hard, heat-resistant steel for use in lathe tools and for other applications involving high friction and wear.
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Origin of high-speed steel

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for high-speed steel

high-speed steel

noun
  1. any of various steels that retain their hardness at high temperatures and are thus suitable for making tools used on lathes and other high-speed machines
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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