Enter a clue or pattern or both:
The Clue
Smelter slag (6 letter answer)
The Answer
SCORIA
Tags
Notes
The answer SCORIA is rarely seen, appearing only about once every 2400 puzzles.
Related Clues
Slag
Cellular lava
Smelting refuse
Smelting residue
Definition
SCORIA as a noun:
1. (slag, scoria, dross) = the scum formed by oxidation at the surface of molten metals