forehearth

== English == === Alternative forms === fore hearth, fore-hearth === Etymology === From fore- +‎ hearth. === Noun === forehearth (plural forehearths) The forward-facing extension or cavity of the hearth of a blast furnace, under the tymp. === References === “forehearth”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.