furnace
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source: Kamaji Furnace GIF - Furnace Kamaji SpiritedAway - Discover & Share GIFs
noun
an enclosed structure in which material can be heated to very high temperatures, e.g. for smelting metals.
炉, かまど; 溶鉱炉
North American an appliance fired by gas, oil, or wood in which air or water is heated to be circulated throughout a building in a heating system.
⦅主に米⦆ 暖房用ボイラー
used to describe a very hot place:
猛烈に熱い場所
e.g. her car was a furnace.
ORIGIN
Middle English: from Old French fornais(e), from Latin fornax, fornac-, from fornus ‘oven’.