from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To harden the surface or case of (iron or steel) by high-temperature shallow infusion of carbon followed by quenching.
  • transitive v. To make callous or insensitive.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To harden the surface of iron or steel by infusing carbon into the surface layer
  • v. To make insensitive to hardship

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To subject to a process which converts the surface of iron into steel.
  • transitive v. To render insensible to good influences.

from The Century Dictionary and Cyclopedia

  • To harden the outer part or surface of, as anything made of iron, by converting the iron into steel.


Sorry, no etymologies found.



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