I. ˌkärbōˈnī.ˌtrīd, -_trə̇d noun
( -s )
Etymology: carb- + nitride
: a compound with carbon and nitrogen
II. transitive verb
( -ed/-ing/-s )
: to treat (an iron alloy) by heating in a gaseous atmosphere of such composition that carbon and nitrogen are absorbed and then cooling in such a way as to produce case hardening