[ slag ]
/ slæg /
Also called cinder. the more or less completely fused and vitrified matter separated during the reduction of a metal from its ore.
the scoria from a volcano.
waste left over after the re-sorting of coal.
verb (used with object), slagged, slag·ging.
to convert into slag.
Metallurgy. to remove slag from (a steel bath).
verb (used without object), slagged, slag·ging.
to form slag; become a slaglike mass.
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Origin of slag1
1545–55; < Middle Low German slagge; cognate with German Schlacke dross, slag; see slack2
OTHER WORDS FROM slag
slag·a·ble, adjectiveslag·a·bil·i·ty, nounslag·less, adjectiveslag·less·ness, noun
Words nearby slag
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for slagging
/ (slæɡ) /
Also called: cinder the fused material formed during the smelting or refining of metals by combining the flux with gangue, impurities in the metal, etc. It usually consists of a mixture of silicates with calcium, phosphorus, sulphur, etcSee also basic slag
a mass of rough fragments of pyroclastic rock and cinders derived from a volcanic eruption; scoria
a mixture of shale, clay, coal dust, and other mineral waste produced during coal mining
British slang a coarse or dissipated girl or woman
verb slags, slagging or slagged
(tr) British slang (usually foll by off) to abuse (someone) verbally
(intr) Australian slang to spit
Derived forms of slagslagging, nounslaggy, adjective
Word Origin for slag
C16: from Middle Low German slagge, perhaps from slagen to slay
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
Scientific definitions for slagging
[ slăg ]
The vitreous mass left as a residue by the smelting of metallic ore. It consists mostly of the siliceous and aluminous impurities from the iron ore.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.