slag

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Copper, steel, aluminum and precious metals can be recovered, but rare-earth metals typically fuse with other byproducts in waste called slag.

From The Wall Street Journal • Jan. 23, 2026

Next to the sculpture are barrels of toxic "slag" leftover from the melting process.

From BBC • Oct. 19, 2025

Among the many sounds and smells of the steelworks, Steve's most notable memory is the smell of "rotten eggs", which comes from the slag that's formed during the steel-making process.

From BBC • Sep. 22, 2024

The Cambridge researchers found that used cement is an effective substitute for lime flux, which is used in steel recycling to remove impurities and normally ends up as a waste product known as slag.

From Science Daily • May 22, 2024

Mara and Smithy walked around salvaging chunks of slag metal.

From "The Many Assassinations of Samir, the Seller of Dreams" by Daniel Nayeri