Middle English from Old French fornaisfrom Latin fornāxfornāc-ovengwher- in Indo-European roots
American Heritage Dictionary of the English Language, 5th Edition
From Old French fornais (French fournaise), from Latinfornax.
Furnace Sentence Examples
The furnace is to make iron.
It's humiliating to think you'd come to this empty furnace just to get away from me.
The Silesian furnace has an oblong hearth sloping from the firebridge to the flue-bridge.
Liquation, if not followed by poling, is carried on as a rule in a reverberatory furnace with an oblong, slightly trough-shaped inclined hearth; if the lead is to be poled it is usually melted down in a cast-iron kettle.
The lead produced in the reverberatory furnace and the ore-hearth is of a higher grade than that produced in the blast-furnace, as the ores treated are purer and richer, and the reducing action is less powerful.