Definify.com
Webster 1913 Edition
Furnace
Fur′nace
,Noun.
 [OE. 
fornais
, forneis
, OF. fornaise
, F. fournaise
, from L. fornax
; akin to furnus oven, and prob. to E. forceps
.] 1. 
An inclosed place in which heat is produced by the combustion of fuel, as for reducing ores or melting metals, for warming a house, for baking pottery, etc.; 
as, an iron 
 furnace
; a hot-air furnace
; a glass furnace
; a boiler furnace
, etc.☞ Furnaces are classified as wind or air. furnaces when the fire is urged only by the natural draught; as blast furnaces, when the fire is urged by the injection artificially of a forcible current of air; and as reverberatory furnaces, when the flame, in passing to the chimney, is thrown down by a low arched roof upon the materials operated upon. 
2. 
A place or time of punishment, affiction, or great trial; severe experience or discipline. 
Deut. iv. 20.
 Bustamente furnace
, a shaft furnace for roasting quicksilver ores. 
– Furnace bridge
, Same as 
See Bridge wall
. Bridge
, Noun.
Furnace cadmiam 
or Furnace cadmia
the oxide of zinc which accumulates in the chimneys of furnaces smelting zinciferous ores. 
Raymond. 
– Furnace hoist 
(Iron Manuf.)
, a lift for raising ore, coal, etc., to the mouth of a blast furnace.
 Fur′nace
,Noun.
 1. 
To throw out, or exhale, as from a furnace; also, to put into a furnace. 
[Obs. or R.] 
He 
The thick sighs from him.
furnaces
The thick sighs from him.
Shakespeare
Webster 1828 Edition
Furnace
FUR'NACE
,Noun.
  1.
  A place where a vehement fire and heat may be made and maintained, for melting ores or metals, &c.  A furnace for casting cannon and other large operations is inclosed with walls through which a current of air is blown from a large bellows.  In smaller operations a vessel is constructed with a chamber or cavity, with a door and a grate.2.
  In scripture, a place of cruel bondage and affliction.  Deut. 4.3.
  Grievous afflictions by which men are tried.  Ezek. 22.4.
  A place of temporal torment.  Dan. 3.5.
  Hell; the place of endless torment.  Matt. 13.FUR'NACE
,Verb.
T.
  Definition 2025
furnace
furnace
English

An oil furnace for heating a building
Noun
furnace (plural furnaces)
- A device for heating.
 - A device that heats materials being processed in a factory.
 - A device that provides heat for a building.
 - Any area that is excessively hot.
 -  (figuratively) A place or time of punishment, affiction, or great trial; severe experience or discipline.
-  c. 1530, William Tyndale, Tyndale Bible, Deuteronomy 4:20:
- For the Lorde toke you and broughte you out of the yernen fornace of Egipte, to be vnto him a people of enheritaunce, as it is come to passe this daye.
 
 
 -  c. 1530, William Tyndale, Tyndale Bible, Deuteronomy 4:20:
 
Translations
device for heating — see oven
device for heating in a factory, melting metals, etc
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device for heating a building
hot area
Verb
furnace (third-person singular simple present furnaces, present participle furnacing, simple past and past participle furnaced)
- To heat in a furnace