slag

Meanings

1. 1
   noun

   waste material separated from metal during smelting or refining

   A dark crust of slag floated on the molten iron.

2. 2
   noun

   waste rock or other refuse left by mining or industrial processing

   Old heaps of slag still surrounded the abandoned colliery.

3. 3
   verb

   to form, remove, or convert material into slag

   The impurities slagged as the furnace reached full heat.

Common collocations

• basic slag Adjective + noun

Borrowed from Middle Low German slagge, 'dross or slag,' from a Germanic verb meaning 'to strike.' It probably first referred to fragments struck from hot metal, then to the glassy waste separated from ore during smelting.

Topics

External links

• Cambridge Dictionary
• Wiktionary
• Google Images