The Collaborative International Dictionary
Casehardening
Casehardening \Case"hard`en*ing\, n.
The act or process of converting the surface of iron into
steel.
--Ure.
Note: Casehardening is now commonly effected by cementation with charcoal or other carbonizing material, the depth and degree of hardening (carbonization) depending on the time during which the iron is exposed to the heat. See Cementation.
Wiktionary
casehardening
vb. (present participle of caseharden English)
Usage examples of "casehardening".
At first he put it down to nervous shock it had been too many years since his casehardening on the Syccan battle line, and the events of the night had been enough to shake any man.