Definition of slag in English:

slag

Pronunciation /slaɡ/ /slæɡ/

Translate slag into Spanish

noun

  • 1Stony waste matter separated from metals during the smelting or refining of ore.

    ‘the burning liquid iron was forming a scum of slag’
    • ‘The hardened matter was slag, a waste product from metal working, and contained evidence of iron, copper and lead manufacture.’
    • ‘In highly developed countries, the major components of industrial waste are blast furnace and steel slag, and power station ash.’
    • ‘The union has leveled 15 separate charges against Levy, a contractor at Mittal Steel USA, which performs slag processing and metal reclamation.’
    • ‘The blasts shot towards the small shielded orb and reduced the metal to molten slag.’
    • ‘The waste product slag was also increasingly used in road and house building.’
    • ‘Blast furnaces are used to recycle slag, dross, and residues from other processes.’
    • ‘In particular, tuyeres in the furnace became blocked with slag.’
    • ‘Ground granulated blast furnace slag is used in 53 % of councils in NSW and 23 % in VIC.’
    • ‘"Oh, it used to be a slag heap, " John said.’
    • ‘Tell me about Lehigh's interest in supplemental materials, like slag cement.’
    • ‘Vincent snorted, and turned the doorknob into molten slag once it had swung shut again.’
    • ‘The road is unusually constructed of compacted iron slag.’
    • ‘We started making turns around the slag piles at the mine.’
    • ‘By contrast, the lunar regolith ‘has a composition similar to mining slag.’’
    • ‘Piles of black slag marked the entrances to small coal mines.’
    • ‘This artificial uranium mine is contained in the slag material from power station coal combustion and deposited in landfills.’
    • ‘Ores, slag and ash exports during the first seven months amounted to $644 million, up 77 per cent over the same period last year.’
    • ‘Some people had even died in slag slides, picking loose bits of coal in order to keep their homes heated.’
    • ‘The concentrates are refined by smelting - they are melted, and the impurities are removed as a slag.’
    • ‘Under suitable slag conditions vanadium, in quite small quantities, ‘cleans’ the steel and renders it free from slag inclusions.’
    1. 1.1Similar material produced by a volcano; scoria.
      count noun ‘flow after flow of lava, slags, powders, and ejecta cast upon the previous outpourings in grotesque patterns’
      • ‘Thirdly, reduce the clinker content in cement, by intergrinding cementious material like slag, fly ash, or limestone.’
      • ‘The difference in densities of the molten iron and molten slag allow each material to be removed separately from the furnace.’
      • ‘It was a more rustic and northern version of Detroit with escarpments of slag and iron ore.’
      • ‘It is usually caused by the scouring action of sand, gravel, slag, earth, and other gritty material.’
      • ‘Kerosene has been used to light pyres constructed of coal slag, old tyres and tar-soaked rail sleepers.’
      • ‘Mineral fiber insulation, including fiber glass and rock wool, is produced from either molten glass, slag, or rock.’
      • ‘There were areas of bare rock and slag, which were around old gold mines, according to the naturalist.’
      • ‘The stats and history of this limestone slag heap are impressive in their own right.’
      • ‘Two recycled cementitious materials come to mind immediately - fly ash and slag cement.’
      • ‘The blasts shot towards the small shielded orb and reduced the metal to molten slag.’
      • ‘I watched, slightly shocked, as molten metal slag fell onto the glass, steaming.’
      • ‘The increasing size of the slag pile poses an ongoing threat to the richest remaining prairie site.’
  • 2British offensive A woman who has many casual sexual encounters or relationships.

intransitive verbslags, slagging, slagged

[no object]
  • Produce deposits of slag.

Phrasal Verbs

    slag off
    British informal
    • slag someone off, slag off someoneCriticize someone in an abusive and insulting manner.

      • ‘she was always slagging him off’
      • ‘I don't feel particularly comfortable slagging off underpaid public sector workers’

Origin

Mid 16th century from Middle Low German slagge, perhaps from slagen ‘strike’, with reference to fragments formed by hammering. The verb sense ‘criticize’ dates from the 1970s.