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Glite Dictionary
⚙️ Waste from metal 🌋 Porous lava rock
scoria

scoria

9.9
A layer of waste and glass that forms on the surface of melted metal
  • noun
  • /ˈskoʊriə/
  • Specialized
translation icon : escoria
  • Workers removed the scoria that had formed during the smelting process.

Examples

  • After the metal was refined, the scoria was skimmed from the surface of the molten iron.

  • The black, glassy scoria cooled quickly after being separated from the metal.

  • Look at the scoria!

  • The scoria is heavy.

  • After the metal was refined, the scoria was skimmed from the surface of the molten iron.

  • Workers removed the scoria that had formed during the smelting process.

  • The black, glassy scoria cooled quickly after being separated from the metal.

Synonyms

scum
vsscoria
24 4.2

A dirty layer that floats on the surface of water

is specific to molten metals and forms by oxidation on the surface
slag
vsscoria
  • Specialized
18 9.5

A hard, stony waste left when metals are melted and cleaned

is an oxidized waste layer formed by surface chemical reaction
dross
vsscoria
4 9.6

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

is the surface oxide layer that forms rather than separated residue

Surface Forms

scoria singular
scorias plural

Etymology

The word scoria comes from the Latin scoria, which meant 'dross' or 'waste' on melted metal. So the thin, glassy layer that forms on top of molten metal is called scoria because it is the 'slag' or waste that is skimmed off.