noun🔗ShareWiderhallofenA form of forge, used in smelting and refining, in which the material is melted by radiant heat and convection of hot gasses, as opposed to direct contact with the fuel or flame (conduction)"The nineteenth-century copper mine used a reverberatory furnace to extract pure metal from the ore without directly exposing it to the burning coal. "Die Kupfermine aus dem 19. Jahrhundert verwendete einen Widerhallofen, um reines Metall aus dem Erz zu gewinnen, ohne es direkt der brennenden Kohle auszusetzen.materialtechnologyindustrymachinefuelchemistryphysicsscienceenergyChat with AIVocabulary GamePractice Reading