scoria

Definition

The slag or dross that remains after the smelting of metal from an ore.

Etymology

Inherited from Middle English, from Latin scōria, from Ancient Greek σκωρία (skōría), from σκῶρ (skôr, “dung”).

Example Sentences

• "The like stuff is in Anacharsis: hot metal; full of scoriae, which should and could have been smelted out, but which will not."
• "To the south lay broken shapes of scoria in a lava bed as far as the eye could see."
• "An excellent guidebook by Drs Kilburn and McGuire of University College London reveals that these unpromising pieces of debris are scoria and lithic fragments of the March 1944 eruption."