Anything thrown away or rejected as worthless or useless; waste; trash; rubbish
That which is left over after part is taken away; remainder; rest
The unburned particles and white or grayish powder remaining after a thing has been burned
Waste matter; worthless stuff; rubbish
Loose, cinderlike lava
Find another word for slag. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for slag, like: cinders, recrement, refuse, residue, ashes, debris, dross, scoria and lava.