slag formed by the basic process of steelmaking, used as a furnace or converter lining or as a fertilizer.
Origin of basic slag
First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for basic slag
Historical Examples of basic slag
The basic-slag should be obtained direct from the iron-foundry.
a furnace slag produced in steel-making, containing large amounts of calcium phosphate: used as a fertilizer
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