Prehardened is an abbreviation of prehard.
As a verb prehardened
is (preharden).
As an abbreviation prehard is
an abbreviation for prehardened.
As a noun prehard is
(engineering) bar stock that has been hardened prior to delivery.
prehard
English
Abbreviation
(
Abbreviation)
(
en-abbr)
An abbreviation for prehardened
Noun
(-)
(engineering) Bar stock that has been hardened prior to delivery.