oil-harden
[ oil-hahr-dn ]
/ ˈɔɪlˌhɑr dn /
verb (used with object) Metallurgy.
to quench (steel) in a bath of oil.
Compare
water-harden.
Origin of oil-harden
First recorded in 1900–05
Words nearby oil-harden
oil spill,
oil tanker,
oil varnish,
oil well,
oil-cooled,
oil-harden,
oil-immersion objective,
oil-plant,
oil-seed rape,
oilbird,
oilcan