face-harden
[ feys-hahr-dn ]
/ ˈfeɪsˌhɑr dn /
verb (used with object)
to harden the surface of (metal), as by chilling or casehardening.
Origin of face-harden
First recorded in 1895–1900
Words nearby face-harden
face with,
face-ache,
face-bow,
face-centered,
face-centred,
face-harden,
face-lift,
face-nail,
face-off,
face-plant,
face-saver
British Dictionary definitions for face-harden
face-harden
verb
(tr)
to harden the surface of (steel or iron) by the addition of carbon at high temperature