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slag

slag

18 9.5
A hard, stony waste left when metals are melted and cleaned
  • noun
  • /slæɡ/
  • Specialized
translation icon : escoria
  • My papa used to pour slag in a steel mill.
  • a slag heap
  • slag and ash
  • blast-furnace slag

So the glass had some slag spots on it and stuff.

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Examples

  • The boiler will also turn out a slag about two-thirds the volume of ash.

    Academic text (2001)
  • In the western hut, he found chunks of iron slag in a hearth next to the back wall.

    Academic text (2008)
  • Leon and I chip the slag off and clean each pass.

    Fiction book (1998)
  • Hot combustion gases flow up through the slag screen, and final heated air is added to complete combustion.

    Academic text (1999)
  • Thermal injuries are most often secondary to molten slag entering the ear canal during welding.

    Academic text (2006)
  • The foreman explained that inside the crucible was a lead-rich slag that was already cooked.

    Fiction book (1997)
  • The plains, even then, had become a wasteland of slag heaps and railroad sidings.

    Fiction book (2002)
  • There were gray slag heaps, dark mountains of coal, and dunes of yellow sulfur.

    Academic text (2005)
  • Control-room personnel can immediately spot slag forming on tubing, clinkers inside coal-fired furnaces, and other potentially harmful situations.

    Academic text (1994)
  • When the gold has cooled, the black impurities, known as slag, are beaten off.

Synonyms

dross
vsslag
4 9.6

Waste material that forms on the surface of melted metal and is removed

is a hard stony surface layer rather than loose scum
scoria
vsslag
  • Specialized
9.9

A layer of waste and glass that forms on the surface of melted metal

is any stony surface layer that can form without oxidation

Compounds

basic slag
  • Specialized
8.4

Material from making steel that farmers use as fertilizer

slag tag
  • Baby Talk
9.5

A children's game like tag where one child chases others

How Much

slagging
  • Specialized
8.3
slag
  • Specialized
18 9.5

Surface Forms

slag singular
slags plural

Etymology

Slag comes from an old Norse word slagg that meant 'waste' or 'scum' from metal work, like the dark skin that forms on hot metal. So slag is the stony waste left on the surface of molten metal.