Also called: cinderthe 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
Britishslanga coarse or dissipated girl or woman
verbslags, slaggingorslagged
(tr)Britishslang(usually foll by off)to abuse (someone) verbally
(intr)Australianslangto spit
Derived Formsslagging, nounslaggy, adjective
Word Origin for slag
C16: from Middle Low German slagge, perhaps from slagen to slay
"refuse from smelting," 1550s, from Middle Low German slagge (German Schlacke) "splinter flying off when metal is struck," related to Old High German slahan "to strike, slay" (see slay (v.)).
slag
v.
"denigrate," by 1971, from slag (n.) in a secondary sense of "worthless person" (1788). Related: Slagged; slagging.