case-harden

verb
case-hard·​en | \ ˈkās-ˌhär-dᵊn How to pronounce case-harden (audio) \
case-hardened; case-hardening; case-hardens

Definition of case-harden

transitive verb

1 : to harden (a ferrous alloy) so that the surface layer is harder than the interior
2 : to make callous or insensible

Other Words from case-harden

case-hardened adjective

First Known Use of case-harden

1677, in the meaning defined at sense 1

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The first known use of case-harden was in 1677

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Cite this Entry

“Case-harden.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/case-harden. Accessed 30 Jul. 2021.

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