open-hearth

== English == === Alternative forms === open hearth === Adjective === open-hearth (not comparable) Describing a reverberatory furnace used to make steel, usually in mass-produced quantities. Designating the steel so produced. Describing an open hearth in the home, especially in premodern centuries when such hearths were more common. ==== Derived terms ==== open-hearth furnace open-hearth process ==== See also ==== Siemens-Martin steel