case-harden

verb

1. metallurgy to form a hard surface layer of high carbon content on (a steel component) by heating in a carburizing environment with subsequent quenching or heat treatment
2. to harden the spirit or disposition of; make callous

   experience had case-hardened the judge

Example Sentences

But time and earth case-harden us to live; The feeblest sense is trusted most; the child Feels God a moment, ichors o'er the place, Plays on and grows to be a man like us.

From Project Gutenberg

Many woods, however, check severely in air-drying or case-harden in the air.

From Project Gutenberg

Rapidly dried in a kiln, the wood of oak and other hardwoods "case-harden," that is, the outer part dries and shrinks before the interior has a chance to do the same, and thus forms a firm shell or case of shrunken, commonly checked wood around the interior.

From Project Gutenberg

The bar of soap will skin or case-harden, and next day may be "close-piled," or placed in the storage bins, where they should remain for two or three weeks, when they will be in perfect condition for packing into boxes ready for distribution.

From Project Gutenberg

But time and earth case-harden us to live; The feeblest sense is trusted most; the child Feels God a moment, ichors o'er the place, Plays on and grows to be a man like us.

From Project Gutenberg