slag1 [slag] Show IPA noun, verb, slagged, slag·ging.noun1.Also called cinder. the more or less completely fused and vitrified matter separated during the reduction of a metal from its ore.2.the scoria from a volcano.3.waste left over after the re-sorting of coal.
slag1 [slag] Show IPA noun, verb, slagged, slag·ging.noun1.Also called cinder. the more or less completely fused and vitrified matter separated during the reduction of a metal from its ore.2.the scoria from a volcano.3.waste left over after the re-sorting of coal.