Submitted by György Chityil ... on Fri, 01/19/2018 - 16:59 Hierarchy: NounDescription: {{metallurgy}} Residual ore that failed to melt during a smelting process.Ngram: hardheadNgram Text: hardheadSource: WiktionaryIssue: 0Wiktionary tag: metallurgyNgram Count: 1Wikokit WikiText ID: 717966