‖n.; pl. Scoriae [ L., fr. Gr. &unr_;, fr. &unr_; 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 ]

a. Scoriaceous. E. A. Poe. [ 1913 Webster ]

a. [ Cf. F. scoriacé. ] Of or pertaining to scoria; like scoria or the recrement of metals; partaking of the nature of scoria. [ 1913 Webster ]