sco·ria /ˈskoriə, ˈskɔr-/
鐵渣子,礦渣,燒石
Sco·ri·a n.; pl. Scoriae
1. The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross.
2. Cellular slaggy lava; volcanic cinders.
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scoria
n : the scum formed by oxidation at the surface of molten metals
[syn: slag, dross]
[also: scoriae (pl)]