Found 2 items, similar to scoria.
English → English (WordNet) Definition: scoria scoria n : the scum formed by oxidation at the surface of molten metals [syn: slag, dross] [also: scoriae (pl)]
English → English (gcide) Definition: Scoria Scoria \Sco"ri*a\, n.; pl. Scori[ae]. [L., fr. Gr. ?, fr. ? dung, ordure.] 1. The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross. [1913 Webster] 2. Cellular slaggy lava; volcanic cinders. [1913 Webster]