Salamander
When, through faulty charging, bad fuel, too heavy burdens of refractory ores, or from any fault in the shape of the blast-furnace a scaffold should take place, it sometimes occurs that an accumulation of cinder and cold metal is formed, which proves highly refractory, and extremely difficult to remove. This obstruction is technically termed a salamander. In some extreme cases, when all other means used for their removal has been obstinately resisted, dynamite has been successfully employed for that purpose. See SCAFFOLD.