scoria

• Существительное, обозначающее пену или окалину, образующуюся при окислении на поверхности расплавленных металлов.

A noun referring to the scum or dross formed by oxidation on the surface of molten metals.

uncountable

1. Metallurgical scumC2formaltechnical

   The scum or dross formed by oxidation on the surface of molten metals, often removed during smelting.

   Металлургический шлак

   • The blacksmith skimmed the scoria from the top of the molten iron.
   • Scoria is a waste product in many metal refining processes.
   • The furnace operator carefully removed the scoria to purify the metal.

   Synonymscinderdrossscumslag