caseharden
See also: case harden
English
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editEtymology
editVerb
editcaseharden (third-person singular simple present casehardens, present participle casehardening, simple past and past participle casehardened)
- To harden the surface of iron or steel by infusing carbon into the surface layer.
- (by extension) To make insensitive to hardship.
Translations
editto harden the surface of steel
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