caseharden
[ keys-hahr-dn ]
/ ˈkeɪsˌhɑr dn /
verb (used with object)
Metallurgy.
to make the outside surface of (an alloy having an iron base) hard by carburizing and heat treatment, leaving the interior tough and ductile.
to harden in spirit so as to render insensible or insensitive to external impressions or influences; make callous.
Words nearby caseharden
caseation,
casebook,
casebound,
casebox,
casefy,
caseharden,
casein,
casein glue,
caseinate,
caseinogen,
casekeeper
Example sentences from the Web for case-harden
Many woods, however, check severely in air-drying or case-harden in the air.
Seasoning of Wood |Joseph B. Wagner
British Dictionary definitions for case-harden
case-harden
verb (tr)
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
to harden the spirit or disposition of; make callous
experience had case-hardened the judge