HyperDic: open-hearth_furnace

English > 1 sense of the expression *open-hearth furnace*:
NOUN	artifact	open-hearth furnace	a furnace for making steel in which the steel is placed on a shallow hearth and flames of burning gas and hot air play over it

English > *open-hearth furnace*: 1 sense > noun 1, artifact
Meaning	A furnace for making steel in which the steel is placed on a shallow hearth and flames of burning gas and hot air play over it.
Broader	furnace	An enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.
Adjectives	open-hearth	of or relating to or produced by the open-hearth process