|1.||an enclosed chamber in which heat is produced to generate steam, destroy refuse, smelt or refine ores, etc|
|2.||a very hot or stifling place|
|[C13: from Old French fornais, from Latin fornax oven, furnace; related to Latin formus warm]|
(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).