smelt-the stem of smelt v. in combination, as smelt-furnace, -house[Du.smelthuis, G. schmelzhaus], -mill, places where smelting is carried on.1684Phil.Trans. XVII. 741 When the Smelt-Houses were up at Keswick,..this Work was left good.1771Ann.Reg. 90 Destroying the wear of Mr. Smith's smelt-mill.1831Carlyle Sart. Res. i. vi, Those jingling sheet-iron Aprons, wherein your otherwise half-naked Vulcans hammer and smelt in their smelt-furnace.1860Indenture, The cottage, shop, and buildings formerly a smelthouse.