from The Century Dictionary.
- noun A plate of metal produced in the process of refining pig-iron as preparatory to its being puddled in the reverberatory furnace, according to the method followed in Yorkshire for the production of a high class of iron. Such plates are grooved on the bottom and have been cooled rapidly, so as to be easily broken in pieces. Also called line-metal, white metal, or simply metallurgy
Sorry, no etymologies found.