harden : Idioms & Phrases


case-hardened

  • adjective satellite used of persons; emotionally hardened
    hard-boiled; hardened.
    • faced a case-hardened judge
WordNet

case-hardened steel

  • noun steel with a surface that is much harder than the interior metal
WordNet

face-harden

  • verb harden steel by adding carbon
WordNet

Hammer hardening

  • the process of hardening metal by hammering it when cold.
Webster 1913

hammer-harden

Ham"mer-hard`en transitive verb
Definitions
  1. To harden, as a metal, by hammering it in the cold state.
Webster 1913

hardening of the arteries

  • noun sclerosis of the arterial walls
    arterial sclerosis; arteriosclerosis; induration of the arteries; coronary-artery disease.
WordNet

oil-hardened steel

  • noun steel that is quenched in oil
WordNet

To harden the neck

  • to grow obstinate; to be more and more perverse and rebellious. Neh. ix. 17.
Webster 1913