ferrosilicon

[ fer-oh-sil-i-kuh n, -kon ]
/ ˌfɛr oʊˈsɪl ɪ kən, -ˌkɒn /

noun

a ferroalloy containing up to 95 percent silicon.

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Origin of ferrosilicon

First recorded in 1880–85; ferro- + silicon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for ferrosilicon

ferrosilicon
/ (ˌfɛrəʊˈsɪlɪkən) /

noun

an alloy of iron and silicon, used in making cast iron and steel
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