Definition of Furnace

fornax

clibanus

(n.)
To throw out, or exhale, as from a furnace; also, to put into a furnace.
  

(n.)
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.
  

(n.)
A place or time of punishment, affiction, or great trial; severe experience or discipline.
  

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furnace
\fur"nace\, n.
1. to throw out, or exhale, as from a furnace; also, to put into a furnace. [obs. or r.] he furnaces the thick sighe from him.
furnace
\fur"nace\ (?), n. [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.
note: 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. iv. 20.

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  similar words(18) 

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 air furnace 
 shaft furnace 
 iron furnace 
 converting furnace 
 tank furnace 
 flowing furnace 
 open-hearth furnace 
 blast furnace 
 wind furnace 
 open-front furnace 
 almond furnace 
 reducing furnace 
 regenerative furnace 
 reverberatory furnace 
 catalan furnace 
 bustamente furnace 
 puddling furnace 
 ash-furnace 

Ffoc = n. fire place, furnace

Ffwrn = n. a furnace, an oven

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Noun
1. an enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.
(hypernym) chamber
(hyponym) athanor
(part-meronym) grate, grating

County:  Ceredigion
Post Code: SY20

To dream of a furnace, foretells good luck if it is running. If out of repair, you will have trouble with children or hired help. To fall into one, portends some enemy will overpower you in a business struggle.
  

Heart, circulatory system

The part of a boiler or warm-air space-heating plant in which combustion takes place.

Space-heating equipment consisting of a ductless combustor or resistance unit, having an enclosed chamber where fuel is burned or where electrical-resistance heat is generated to warm the rooms of a building. A floor furnace is located below the floor and delivers heated air to the room immediately above or (if under a partition) to the room on each side. A wall furnace is installed in a partition or in an outside wall and delivers heated air to the rooms on one or both sides of the wall. A pipeless furnace is installed in a basement and delivers heated air through a large register in the floor of the room or hallway immediately above.

The gravity furnace uses the principle of thermal convection. When air is heated, it rises and as the air cools it settles. Ducts are installed to carry the hot air from the top of the furnace to the rooms. Other ducts, called cold air returns, return the cooler air back to the furnace.

a type of semiconductor manufacturing equipment used to heat up groups of wafers to temperatures >200^oC and <1,300^oC, with precise temperature control. Furnaces have quartz tubes sufficiently large to hold a wafer boat and the tube is surrounded by resistance heating elements. The quartz tube has one end connected to a gas controller that allows various gases to flow through the tube, the furnace would also commonly have the ability to change temperatures in a controlled manner and insert and withdraw the wafer boat all under computer control. Computer programs may then insert the wafer boat into a controlled atmosphere, increase the temperature, make changes in the gases flowing and then reduce the temperature and withdraw the wafer boat to accomplish oxidation, diffusion, alloying or annealing. Standard furnace typically ramp-up at 5-10^oC/min. and ramp-down at 2-3^oC/min.

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A combustion chamber; an enclosed structure in which fuel is burned to heat air or material.

(1.) Chald. attun, a large furnace with a wide open mouth, at the top of which materials were cast in (Dan. 3:22, 23; comp. Jer. 29:22). This furnace would be in constant requisition, for the Babylonians disposed of their dead by cremation, as did also the Accadians who invaded Mesopotamia. (2.) Heb. kibshan, a smelting furnace (Gen. 19:28), also a lime-kiln (Isa. 33:12; Amos 2:1). (3.) Heb. kur, a refining furnace (Prov. 17:3; 27:21; Ezek. 22:18). (4.) Heb. alil, a crucible; only used in Ps. 12:6. (5.) Heb. tannur, oven for baking bread (Gen. 15:17; Isa. 31:9; Neh. 3:11). It was a large pot, narrowing towards the top. When it was heated by a fire made within, the dough was spread over the heated surface, and thus was baked. "A smoking furnace and a burning lamp" (Gen. 15:17), the symbol of the presence of the Almighty, passed between the divided pieces of Abraham's sacrifice in ratification of the covenant God made with him. (See OVEN.) (6.) Gr. kamnos, a furnace, kiln, or oven (Matt. 13:42, 50; Rev. 1:15; 9:2).

Various kinds of furnaces are noticed in the Bible, such as a smelting or calcining furnace, (Genesis 19:28; Exodus 9:8,10; 19:18) especially a lime-kiln, (Isaiah 33:12; Amos 2:1) a refining furnace, (Proverbs 17:3) Nebuchadnezzar's furnace, a large furnace built like a brick-kiln, (Daniel 3:22,23) with two openings one at the top for putting in the materials, and another below for removing them; the potter's furnace, Ecclus. 27:5; The blacksmith's furnace. Ecclus. 38:28. The Persians were in the habit of using the furnace as a means of inflicting punishment. (Daniel 3:22,23; Jeremiah 29:22)