caseharden


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case·hard·en

 (kās′här′dn)
tr.v. case·hard·ened, case·hard·en·ing, case·hard·ens
1. To harden the surface or case of (iron or steel) by high-temperature shallow infusion of carbon followed by quenching.
2. To make callous or insensitive.

case•hard•en

(ˈkeɪsˌhɑr dn)

v.t.
1. to harden the surface of (an iron-based alloy) by carburizing and heat treatment, leaving the interior tough and ductile.
2. to make callous.
[1670–80]
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caseharden

verb
To make resistant to hardship, especially through continued exposure:
References in periodicals archive ?
Obviously, the said principle is called to caseharden globally the system of contractual relations and its stability in football.