Dictionary entry

Electrotype

Webster's Dictionary 1913

E‐lec″tro‐type (?), n. [Electro- + -type.] A facsimile plate made by electrotypy for use in printing; also, an impression or print from such plate. Also used adjectively.

☞ The face of an electrotype consists of a shell of copper, silver, or the like, produced by the action of an electrical current upon a plate of metal and a wax mold suspended in an acid bath and connected with opposite poles of the battery. It is backed up with a solid filling of type metal.