noun
- waste matter separated from metals during smelting
- stony waste matter from coal mining
Usage: technical
Usage: technical
verb
- criticizes harshly or insults
Usage: British; informal
Examples
- The steel mill disposed of tons of slags from the furnaces.
- Mining operations produced large piles of slags and waste rock.
- The furnace operator removed the slags before pouring the molten metal.
- Coal slags were used to fill low-lying areas near the mine.
- He constantly slags off his coworkers behind their backs.
- She slags anyone who disagrees with her opinions.