Definitions

1. noun

the waste material from a furnace, blast furnace, or steel mill, typically consisting of unburned coal, ash, and other impurities.

“The steel factory produces a significant amount of slag as a byproduct of its manufacturing process.”

2. verb

to spoil or ruin something by treating it carelessly or roughly.

“He slagged the expensive sports car with mud, ruining the paint job.”

3. verb

to talk or write about something in a contemptuous or dismissive manner.

“The comedian was known for slinging insults and slags at the politicians on stage.”

4. noun

a type of rock formed from solidified lava, typically containing large amounts of iron and magnesium.

“The geologist identified the unique rock formation as a type of volcanic slag.”