slag slae • slaggability · · · Info · Definitions · Synonyms · Characters · · slag · · Text Latin · · Script 4 · · Length Definitions · · · (noun) the scum formed by oxidation at the surface of molten metals. Synonyms: scoria, dross. · · Noun Definition 1 (verb) convert into slag. · · Verb Definition 1 Synonyms · · · scoria · · Synonym 1 dross · · Synonym 2 Characters · · a latin small letter a U+0061 g latin small letter g U+0067 l latin small letter l U+006C s latin small letter s U+0073